Difference between revisions of "Lunar 100"

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=Lunar 100=
 
=Lunar 100=
 
<div id="toc">
 
<div id="toc">
−
=Table of Contents=
+
 
−
<div style="margin-left: 1em">[#Lunar 100 Lunar 100]</div><div style="margin-left: 2em">[#Lunar 100-Description Description]</div><div style="margin-left: 2em">[#Lunar 100-Lunar 100 List Lunar 100 List]</div><div style="margin-left: 2em">[#Lunar 100-Additional Information Additional Information]</div><div style="margin-left: 2em">[#Lunar 100-Other Observing Programs Other Observing Programs]</div><div style="margin-left: 2em">[#Lunar 100-LPOD Articles LPOD Articles]</div><div style="margin-left: 2em">[#Lunar 100-Lunar 100 Links Lunar 100 Links]</div><div style="margin-left: 2em">[#Lunar 100-Bibliography Bibliography]</div></div>
 
 
==Description==
 
==Description==
 
  The Lunar 100 list is an attempt to provide Moon lovers with something akin to what deep-sky observers enjoy with the Messier catalog: a selection of telescopic sights to ignite interest and enhance understanding. Presented here is a selection of the Moon's 100 most interesting regions, craters, basins, mountains, rilles, and domes. I challenge observers to find and observe them all and, more important, to consider what each feature tells us about lunar and Earth history.<br /> <br /> ''(Note: Chuck Wood's Lunar 100 originated in his column in the popular astronomy magazine '''Sky and Telescope''', and the primary reference describing it remains the 2004 [http://www.skyandtelescope.com/observing/objects/moon/3308811.html?page=1&c=y S&T article] cited at the end. Individual features on the list were described at length in subsequent columns.)''<br /> <br /> <br />  
 
  The Lunar 100 list is an attempt to provide Moon lovers with something akin to what deep-sky observers enjoy with the Messier catalog: a selection of telescopic sights to ignite interest and enhance understanding. Presented here is a selection of the Moon's 100 most interesting regions, craters, basins, mountains, rilles, and domes. I challenge observers to find and observe them all and, more important, to consider what each feature tells us about lunar and Earth history.<br /> <br /> ''(Note: Chuck Wood's Lunar 100 originated in his column in the popular astronomy magazine '''Sky and Telescope''', and the primary reference describing it remains the 2004 [http://www.skyandtelescope.com/observing/objects/moon/3308811.html?page=1&c=y S&T article] cited at the end. Individual features on the list were described at length in subsequent columns.)''<br /> <br /> <br />  
Line 19: Line 18:
 
| 1<br />
 
| 1<br />
 
|
 
|
−
[http://www.lpod.org/archive/archive/2004/02/LPOD-2004-02-16.htm Moon]<br />
+
[http://www2.lpod.org/wiki/February_16,_2004 Moon]<br />
 
| Large satellite<br />
 
| Large satellite<br />
 
| —<br />
 
| —<br />
Line 28: Line 27:
 
| 2<br />
 
| 2<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Earthshine Earthshine]<br />
+
[http://the-moon.us/wiki/Earthshine Earthshine]<br />
 
| Twice reflected sunlight<br />
 
| Twice reflected sunlight<br />
 
| —<br />
 
| —<br />
Line 37: Line 36:
 
| 3<br />
 
| 3<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Mare-Highland%20Dichotomy Mare/highland dichotomy]<br />
+
[http://the-moon.us/wiki/Mare-Highland%20Dichotomy Mare/highland dichotomy]<br />
 
| Two materials with distinct compositions<br />
 
| Two materials with distinct compositions<br />
 
| —<br />
 
| —<br />
Line 46: Line 45:
 
| 4<br />
 
| 4<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Montes%20Apenninus Apennines]<br />
+
[http://the-moon.us/wiki/Montes%20Apenninus Apennines]<br />
 
| Imbrium basin rim<br />
 
| Imbrium basin rim<br />
 
| 18.9N<br />
 
| 18.9N<br />
Line 52: Line 51:
 
| 70<br />
 
| 70<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2022 22]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2022 22]<br />
 
|-
 
|-
 
| 5<br />
 
| 5<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Copernicus Copernicus]<br />
+
[http://the-moon.us/wiki/Copernicus Copernicus]<br />
 
| Archetypal large complex crater<br />
 
| Archetypal large complex crater<br />
 
| 9.7N<br />
 
| 9.7N<br />
Line 62: Line 61:
 
| 93<br />
 
| 93<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2031 31]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2031 31]<br />
 
|-
 
|-
 
| 6<br />
 
| 6<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Tycho Tycho]<br />
+
[http://the-moon.us/wiki/Tycho Tycho]<br />
 
| Large rayed crater with impact melts<br />
 
| Large rayed crater with impact melts<br />
 
| 43.4S<br />
 
| 43.4S<br />
Line 72: Line 71:
 
| 85<br />
 
| 85<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2064 64]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2064 64]<br />
 
|-
 
|-
 
| 7<br />
 
| 7<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Rupes%20Altai Altai Scarp]<br />
+
[http://the-moon.us/wiki/Rupes%20Altai Altai Scarp]<br />
 
| Nectaris basin rim<br />
 
| Nectaris basin rim<br />
 
| 24.3S<br />
 
| 24.3S<br />
Line 82: Line 81:
 
| 425<br />
 
| 425<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2057 57]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2057 57]<br />
 
|-
 
|-
 
| 8<br />
 
| 8<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Theophilus Theophilus], [http://the-moon.wikispaces.com/Cyrillus Cyrillus], [http://the-moon.wikispaces.com/Catharina Catharina]<br />
+
[http://the-moon.us/wiki/Theophilus Theophilus], [http://the-moon.us/wiki/Cyrillus Cyrillus], [http://the-moon.us/wiki/Catharina Catharina]<br />
 
| Crater sequence illustrating stages of degradation<br />
 
| Crater sequence illustrating stages of degradation<br />
 
| 13.2S<br />
 
| 13.2S<br />
Line 92: Line 91:
 
| —<br />
 
| —<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2046 46], [http://the-moon.wikispaces.com/R%C3%BCkl%2057 57]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2046 46], [http://the-moon.us/wiki/R%C3%BCkl%2057 57]<br />
 
|-
 
|-
 
| 9<br />
 
| 9<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Clavius Clavius]<br />
+
[http://the-moon.us/wiki/Clavius Clavius]<br />
 
| Lacks basin features in spite of its size<br />
 
| Lacks basin features in spite of its size<br />
 
| 58.8S<br />
 
| 58.8S<br />
Line 102: Line 101:
 
| 225<br />
 
| 225<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2072 72]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2072 72]<br />
 
|-
 
|-
 
| 10<br />
 
| 10<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Mare%20Crisium Mare Crisium]<br />
+
[http://the-moon.us/wiki/Mare%20Crisium Mare Crisium]<br />
 
| Mare contained in large circular basin<br />
 
| Mare contained in large circular basin<br />
 
| 18.0N<br />
 
| 18.0N<br />
Line 112: Line 111:
 
| 540<br />
 
| 540<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2026 26], [http://the-moon.wikispaces.com/R%C3%BCkl%2027 27], [http://the-moon.wikispaces.com/R%C3%BCkl%2037 37], [http://the-moon.wikispaces.com/R%C3%BCkl%2038 38]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2026 26], [http://the-moon.us/wiki/R%C3%BCkl%2027 27], [http://the-moon.us/wiki/R%C3%BCkl%2037 37], [http://the-moon.us/wiki/R%C3%BCkl%2038 38]<br />
 
|-
 
|-
 
| 11<br />
 
| 11<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Aristarchus Aristarchus]<br />
+
[http://the-moon.us/wiki/Aristarchus Aristarchus]<br />
 
| Very bright crater with dark bands on its walls<br />
 
| Very bright crater with dark bands on its walls<br />
 
| 23.7N<br />
 
| 23.7N<br />
Line 122: Line 121:
 
| 40<br />
 
| 40<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2018 18]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2018 18]<br />
 
|-
 
|-
 
| 12<br />
 
| 12<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Proclus Proclus]<br />
+
[http://the-moon.us/wiki/Proclus Proclus]<br />
 
| Oblique-impact rays<br />
 
| Oblique-impact rays<br />
 
| 16.1N<br />
 
| 16.1N<br />
Line 132: Line 131:
 
| 28<br />
 
| 28<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2026 26]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2026 26]<br />
 
|-
 
|-
 
| 13<br />
 
| 13<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Gassendi Gassendi]<br />
+
[http://the-moon.us/wiki/Gassendi Gassendi]<br />
 
| Floor-fractured crater<br />
 
| Floor-fractured crater<br />
 
| 17.6S<br />
 
| 17.6S<br />
Line 142: Line 141:
 
| 101<br />
 
| 101<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2052 52]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2052 52]<br />
 
|-
 
|-
 
| 14<br />
 
| 14<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Sinus%20Iridum Sinus Iridum]<br />
+
[http://the-moon.us/wiki/Sinus%20Iridum Sinus Iridum]<br />
 
| Very large crater with missing rim<br />
 
| Very large crater with missing rim<br />
 
| 45.0N<br />
 
| 45.0N<br />
Line 152: Line 151:
 
| 260<br />
 
| 260<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2010 10]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2010 10]<br />
 
|-
 
|-
 
| 15<br />
 
| 15<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Straight%20Wall Straight Wall]<br />
+
[http://the-moon.us/wiki/Straight%20Wall Straight Wall]<br />
 
| Best example of a lunar fault<br />
 
| Best example of a lunar fault<br />
 
| 21.8S<br />
 
| 21.8S<br />
Line 162: Line 161:
 
| 110<br />
 
| 110<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2054 54]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2054 54]<br />
 
|-
 
|-
 
| 16<br />
 
| 16<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Petavius Petavius]<br />
+
[http://the-moon.us/wiki/Petavius Petavius]<br />
 
| Crater with domed & fractured floor<br />
 
| Crater with domed & fractured floor<br />
 
| 25.1S<br />
 
| 25.1S<br />
Line 172: Line 171:
 
| 177<br />
 
| 177<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/R%C3%BCkl%2059 59]<br />
+
[http://the-moon.us/wiki/R%C3%BCkl%2059 59]<br />
 
|-
 
|-
 
| 17<br />
 
| 17<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Schr%C3%B6ter%27s%20Valley Schröter's Valley]<br />
+
[http://the-moon.us/wiki/Schr%C3%B6ter%27s%20Valley Schröter's Valley]<br />
 
| Giant sinuous rille<br />
 
| Giant sinuous rille<br />
 
| 26.2N<br />
 
| 26.2N<br />
Line 185: Line 184:
 
| 18<br />
 
| 18<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Mare%20Serenitatis Mare Serenitatis] dark edges<br />
+
[http://the-moon.us/wiki/Mare%20Serenitatis Mare Serenitatis] dark edges<br />
 
| Distinct mare areas with different compositions<br />
 
| Distinct mare areas with different compositions<br />
 
| 17.8N<br />
 
| 17.8N<br />
Line 194: Line 193:
 
| 19<br />
 
| 19<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Alpine%20Valley Alpine Valley]<br />
+
[http://the-moon.us/wiki/Alpine%20Valley Alpine Valley]<br />
 
| Lunar graben<br />
 
| Lunar graben<br />
 
| 49.0N<br />
 
| 49.0N<br />
Line 203: Line 202:
 
| 20<br />
 
| 20<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Posidonius Posidonius]<br />
+
[http://the-moon.us/wiki/Posidonius Posidonius]<br />
 
| Floor-fractured crater<br />
 
| Floor-fractured crater<br />
 
| 31.8N<br />
 
| 31.8N<br />
Line 212: Line 211:
 
| 21<br />
 
| 21<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Fracastorius Fracastorius]<br />
+
[http://the-moon.us/wiki/Fracastorius Fracastorius]<br />
 
| Crater with subsided & fractured floor<br />
 
| Crater with subsided & fractured floor<br />
 
| 21.5S<br />
 
| 21.5S<br />
Line 221: Line 220:
 
| 22<br />
 
| 22<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Aristarchus%20Plateau Aristarchus Plateau]<br />
+
[http://the-moon.us/wiki/Aristarchus%20Plateau Aristarchus Plateau]<br />
 
| Mysterious uplifted region mantled with pyroclastics<br />
 
| Mysterious uplifted region mantled with pyroclastics<br />
 
| 26.0N<br />
 
| 26.0N<br />
Line 230: Line 229:
 
| 23<br />
 
| 23<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Mons%20Pico Pico]<br />
+
[http://the-moon.us/wiki/Mons%20Pico Pico]<br />
 
| Isolated Imbrium basin-ring fragment<br />
 
| Isolated Imbrium basin-ring fragment<br />
 
| 45.7N<br />
 
| 45.7N<br />
Line 239: Line 238:
 
| 24<br />
 
| 24<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Rima%20Hyginus Hyginus Rille]<br />
+
[http://the-moon.us/wiki/Rima%20Hyginus Hyginus Rille]<br />
 
| Rille containing rimless collapse pits<br />
 
| Rille containing rimless collapse pits<br />
 
| 7.4N<br />
 
| 7.4N<br />
Line 248: Line 247:
 
| 25<br />
 
| 25<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Messier Messier] & [http://the-moon.wikispaces.com/Messier%20A Messier A]<br />
+
[http://the-moon.us/wiki/Messier Messier] & [http://the-moon.us/wiki/Messier%20A Messier A]<br />
 
| Oblique ricochet-impact pair<br />
 
| Oblique ricochet-impact pair<br />
 
| 1.9S<br />
 
| 1.9S<br />
Line 257: Line 256:
 
| 26<br />
 
| 26<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Mare%20Frigoris Mare Frigoris]<br />
+
[http://the-moon.us/wiki/Mare%20Frigoris Mare Frigoris]<br />
 
| Arcuate mare of uncertain origin<br />
 
| Arcuate mare of uncertain origin<br />
 
| 56.0N<br />
 
| 56.0N<br />
Line 266: Line 265:
 
| 27<br />
 
| 27<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Archimedes Archimedes]<br />
+
[http://the-moon.us/wiki/Archimedes Archimedes]<br />
 
| Large crater lacking central peak<br />
 
| Large crater lacking central peak<br />
 
| 29.7N<br />
 
| 29.7N<br />
Line 275: Line 274:
 
| 28<br />
 
| 28<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Hipparchus Hipparchus]<br />
+
[http://the-moon.us/wiki/Hipparchus Hipparchus]<br />
 
| First drawing of a single crater<br />
 
| First drawing of a single crater<br />
 
| 5.5S<br />
 
| 5.5S<br />
Line 284: Line 283:
 
| 29<br />
 
| 29<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Rima%20Ariadaeus Aridaeus Rille]<br />
+
[http://the-moon.us/wiki/Rima%20Ariadaeus Aridaeus Rille]<br />
 
| "Long, linear graben"<br />
 
| "Long, linear graben"<br />
 
| 6.4N<br />
 
| 6.4N<br />
Line 293: Line 292:
 
| 30<br />
 
| 30<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Schiller Schiller]<br />
+
[http://the-moon.us/wiki/Schiller Schiller]<br />
 
| Possible oblique impact<br />
 
| Possible oblique impact<br />
 
| 51.9S<br />
 
| 51.9S<br />
Line 302: Line 301:
 
| 31<br />
 
| 31<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Taruntius Taruntius]<br />
+
[http://the-moon.us/wiki/Taruntius Taruntius]<br />
 
| Young floor-fractured crater<br />
 
| Young floor-fractured crater<br />
 
| 5.6N<br />
 
| 5.6N<br />
Line 311: Line 310:
 
| 32<br />
 
| 32<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Arago%20domes Arago Alpha & Beta]<br />
+
[http://the-moon.us/wiki/Arago%20domes Arago Alpha & Beta]<br />
 
| Volcanic domes<br />
 
| Volcanic domes<br />
 
| 6.2N<br />
 
| 6.2N<br />
Line 320: Line 319:
 
| 33<br />
 
| 33<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Serpentine%20Ridge Serpentine Ridge]<br />
+
[http://the-moon.us/wiki/Serpentine%20Ridge Serpentine Ridge]<br />
 
| Basin inner-ring segment<br />
 
| Basin inner-ring segment<br />
 
| 27.3N<br />
 
| 27.3N<br />
Line 329: Line 328:
 
| 34<br />
 
| 34<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Lacus%20Mortis Lacus Mortis]<br />
+
[http://the-moon.us/wiki/Lacus%20Mortis Lacus Mortis]<br />
 
| Strange crater with rille & ridge<br />
 
| Strange crater with rille & ridge<br />
 
| 45.0N<br />
 
| 45.0N<br />
Line 338: Line 337:
 
| 35<br />
 
| 35<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Rimae%20Triesnecker Triesnecker Rilles]<br />
+
[http://the-moon.us/wiki/Rimae%20Triesnecker Triesnecker Rilles]<br />
 
| Rille family<br />
 
| Rille family<br />
 
| 4.3N<br />
 
| 4.3N<br />
Line 347: Line 346:
 
| 36<br />
 
| 36<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Grimaldi Grimaldi] basin<br />
+
[http://the-moon.us/wiki/Grimaldi Grimaldi] basin<br />
 
| A small two-ring basin<br />
 
| A small two-ring basin<br />
 
| 5.5S<br />
 
| 5.5S<br />
Line 356: Line 355:
 
| 37<br />
 
| 37<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Bailly Bailly]<br />
+
[http://the-moon.us/wiki/Bailly Bailly]<br />
 
| Barely discernible basin<br />
 
| Barely discernible basin<br />
 
| 66.5S<br />
 
| 66.5S<br />
Line 365: Line 364:
 
| 38<br />
 
| 38<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Sabine Sabine] & [http://the-moon.wikispaces.com/Ritter Ritter]<br />
+
[http://the-moon.us/wiki/Sabine Sabine] & [http://the-moon.us/wiki/Ritter Ritter]<br />
 
| Possible twin impacts<br />
 
| Possible twin impacts<br />
 
| 1.7N<br />
 
| 1.7N<br />
Line 374: Line 373:
 
| 39<br />
 
| 39<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Schickard Schickard]<br />
+
[http://the-moon.us/wiki/Schickard Schickard]<br />
 
| Crater floor with Orientale basin ejecta stripe<br />
 
| Crater floor with Orientale basin ejecta stripe<br />
 
| 44.3S<br />
 
| 44.3S<br />
Line 383: Line 382:
 
| 40<br />
 
| 40<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Rimae%20Janssen Janssen Rille]<br />
+
[http://the-moon.us/wiki/Rimae%20Janssen Janssen Rille]<br />
 
| Rare example of a highland rille<br />
 
| Rare example of a highland rille<br />
 
| 45.4S<br />
 
| 45.4S<br />
Line 392: Line 391:
 
| 41<br />
 
| 41<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Bessel Bessel] ray<br />
+
[http://the-moon.us/wiki/Bessel Bessel] ray<br />
 
| Ray of uncertain origin near Bessel<br />
 
| Ray of uncertain origin near Bessel<br />
 
| 21.8N<br />
 
| 21.8N<br />
Line 401: Line 400:
 
| 42<br />
 
| 42<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Marius%20Hills Marius Hills]<br />
+
[http://the-moon.us/wiki/Marius%20Hills Marius Hills]<br />
 
| Complex of volcanic domes & hills<br />
 
| Complex of volcanic domes & hills<br />
 
| 12.5N<br />
 
| 12.5N<br />
Line 410: Line 409:
 
| 43<br />
 
| 43<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Wargentin Wargentin]<br />
+
[http://the-moon.us/wiki/Wargentin Wargentin]<br />
 
| A crater filled to the rim with lava or ejecta<br />
 
| A crater filled to the rim with lava or ejecta<br />
 
| 49.6S<br />
 
| 49.6S<br />
Line 419: Line 418:
 
| 44<br />
 
| 44<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Mersenius Mersenius]<br />
+
[http://the-moon.us/wiki/Mersenius Mersenius]<br />
 
| Domed floor cut by secondary craters<br />
 
| Domed floor cut by secondary craters<br />
 
| 21.5S<br />
 
| 21.5S<br />
Line 428: Line 427:
 
| 45<br />
 
| 45<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Maurolycus Maurolycus]<br />
+
[http://the-moon.us/wiki/Maurolycus Maurolycus]<br />
 
| Region of saturation cratering<br />
 
| Region of saturation cratering<br />
 
| 42.0S<br />
 
| 42.0S<br />
Line 437: Line 436:
 
| 46<br />
 
| 46<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Regiomontanus Regiomontanus] central peak<br />
+
[http://the-moon.us/wiki/Regiomontanus Regiomontanus] central peak<br />
 
| Possible volcanic peak<br />
 
| Possible volcanic peak<br />
 
| 28.0S<br />
 
| 28.0S<br />
Line 446: Line 445:
 
| 47<br />
 
| 47<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Alphonsus Alphonsus] dark spots<br />
+
[http://the-moon.us/wiki/Alphonsus Alphonsus] dark spots<br />
 
| Dark-halo eruptions on crater floor<br />
 
| Dark-halo eruptions on crater floor<br />
 
| 13.7S<br />
 
| 13.7S<br />
Line 455: Line 454:
 
| 48<br />
 
| 48<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Cauchy Cauchy] region<br />
+
[http://the-moon.us/wiki/Cauchy Cauchy] region<br />
 
| "Fault, rilles, & domes"<br />
 
| "Fault, rilles, & domes"<br />
 
| 10.5N<br />
 
| 10.5N<br />
Line 464: Line 463:
 
| 49<br />
 
| 49<br />
 
|
 
|
−
Gruithuisen [http://the-moon.wikispaces.com/Mons%20Gruithuisen%20Delta Delta] & [http://the-moon.wikispaces.com/Mons%20Gruithuisen%20Gamma Gamma]<br />
+
Gruithuisen [http://the-moon.us/wiki/Mons%20Gruithuisen%20Delta Delta] & [http://the-moon.us/wiki/Mons%20Gruithuisen%20Gamma Gamma]<br />
 
| Volcanic domes formed with viscous lavas<br />
 
| Volcanic domes formed with viscous lavas<br />
 
| 36.3N<br />
 
| 36.3N<br />
Line 473: Line 472:
 
| 50<br />
 
| 50<br />
 
|
 
|
−
[http://www.lpod.org/?m=20070815 Cayley Plains]<br />
+
[http://www2.lpod.org/wiki/August_15,_2007 Cayley Plains]<br />
 
| "Light, smooth plains of uncertain origin"<br />
 
| "Light, smooth plains of uncertain origin"<br />
 
| 4.0N<br />
 
| 4.0N<br />
Line 482: Line 481:
 
| 51<br />
 
| 51<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Davy%20crater%20chain Davy crater chain]<br />
+
[http://the-moon.us/wiki/Davy%20crater%20chain Davy crater chain]<br />
 
| Result of comet-fragment impacts<br />
 
| Result of comet-fragment impacts<br />
 
| 11.1S<br />
 
| 11.1S<br />
Line 491: Line 490:
 
| 52<br />
 
| 52<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Cr%C3%BCger Crüger]<br />
+
[http://the-moon.us/wiki/Cr%C3%BCger Crüger]<br />
 
| Possible volcanic caldera<br />
 
| Possible volcanic caldera<br />
 
| 16.7S<br />
 
| 16.7S<br />
Line 500: Line 499:
 
| 53<br />
 
| 53<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Lamont Lamont]<br />
+
[http://the-moon.us/wiki/Lamont Lamont]<br />
 
| Possible buried basin<br />
 
| Possible buried basin<br />
 
| 4.4N<br />
 
| 4.4N<br />
Line 509: Line 508:
 
| 54<br />
 
| 54<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Rimae%20Hippalus Hippalus] Rilles<br />
+
[http://the-moon.us/wiki/Rimae%20Hippalus Hippalus] Rilles<br />
 
| Rilles concentric to Humorum basin<br />
 
| Rilles concentric to Humorum basin<br />
 
| 24.5S<br />
 
| 24.5S<br />
Line 518: Line 517:
 
| 55<br />
 
| 55<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Baco Baco]<br />
+
[http://the-moon.us/wiki/Baco Baco]<br />
 
| Unusually smooth crater floor & surrounding plains<br />
 
| Unusually smooth crater floor & surrounding plains<br />
 
| 51.0S<br />
 
| 51.0S<br />
Line 527: Line 526:
 
| 56<br />
 
| 56<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Mare%20Australe Australe basin]<br />
+
[http://the-moon.us/wiki/Mare%20Australe Australe basin]<br />
 
| A partially flooded ancient basin<br />
 
| A partially flooded ancient basin<br />
 
| 49.8S<br />
 
| 49.8S<br />
Line 536: Line 535:
 
| 57<br />
 
| 57<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Reiner%20Gamma Reiner Gamma]<br />
+
[http://the-moon.us/wiki/Reiner%20Gamma Reiner Gamma]<br />
 
| Conspicuous swirl & magnetic anomaly<br />
 
| Conspicuous swirl & magnetic anomaly<br />
 
| 7.7N<br />
 
| 7.7N<br />
Line 545: Line 544:
 
| 58<br />
 
| 58<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Vallis%20Rheita Rheita] Valley<br />
+
[http://the-moon.us/wiki/Vallis%20Rheita Rheita] Valley<br />
 
| Basin secondary-crater chain<br />
 
| Basin secondary-crater chain<br />
 
| 42.5S<br />
 
| 42.5S<br />
Line 554: Line 553:
 
| 59<br />
 
| 59<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Schiller-Zucchius%20Basin Schiller-Zucchius basin]<br />
+
[http://the-moon.us/wiki/Schiller-Zucchius%20Basin Schiller-Zucchius basin]<br />
 
| Badly degraded overlooked basin<br />
 
| Badly degraded overlooked basin<br />
 
| 56.0S<br />
 
| 56.0S<br />
Line 563: Line 562:
 
| 60<br />
 
| 60<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Kies Kies] Pi<br />
+
[http://the-moon.us/wiki/Kies Kies] Pi<br />
 
| Volcanic dome<br />
 
| Volcanic dome<br />
 
| 26.9S<br />
 
| 26.9S<br />
Line 572: Line 571:
 
| 61<br />
 
| 61<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/M%C3%B6sting Mösting] A<br />
+
[http://the-moon.us/wiki/M%C3%B6sting Mösting] A<br />
 
| Simple crater close to center of lunar near side<br />
 
| Simple crater close to center of lunar near side<br />
 
| 3.2S<br />
 
| 3.2S<br />
Line 581: Line 580:
 
| 62<br />
 
| 62<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Mons%20R%C3%BCmker Rümker]<br />
+
[http://the-moon.us/wiki/Mons%20R%C3%BCmker Rümker]<br />
 
| Large volcanic dome<br />
 
| Large volcanic dome<br />
 
| 40.8N<br />
 
| 40.8N<br />
Line 591: Line 590:
 
| Imbrium sculpture<br />
 
| Imbrium sculpture<br />
 
|
 
|
−
Basin ejecta near & overlying [http://the-moon.wikispaces.com/Boscovich Boscovich] & [http://the-moon.wikispaces.com/Julius%20Caesar Julius Caesar]<br />
+
Basin ejecta near & overlying [http://the-moon.us/wiki/Boscovich Boscovich] & [http://the-moon.us/wiki/Julius%20Caesar Julius Caesar]<br />
 
| 11.0N<br />
 
| 11.0N<br />
 
| 12.0E<br />
 
| 12.0E<br />
Line 599: Line 598:
 
| 64<br />
 
| 64<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Descartes Descartes]<br />
+
[http://the-moon.us/wiki/Descartes Descartes]<br />
 
| Apollo 16 landing site; putative region of highland volcanism<br />
 
| Apollo 16 landing site; putative region of highland volcanism<br />
 
| 11.7S<br />
 
| 11.7S<br />
Line 608: Line 607:
 
| 65<br />
 
| 65<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Hortensius Hortensius] domes<br />
+
[http://the-moon.us/wiki/Hortensius Hortensius] domes<br />
 
| Dome field north of Hortensius<br />
 
| Dome field north of Hortensius<br />
 
| 7.6N<br />
 
| 7.6N<br />
Line 617: Line 616:
 
| 66<br />
 
| 66<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Hadley%20Rille Hadley Rille]<br />
+
[http://the-moon.us/wiki/Hadley%20Rille Hadley Rille]<br />
 
| Lava channel near Apollo 15 landing site<br />
 
| Lava channel near Apollo 15 landing site<br />
 
| 25.0N<br />
 
| 25.0N<br />
Line 626: Line 625:
 
| 67<br />
 
| 67<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Fra%20Mauro Fra Mauro] formation<br />
+
[http://the-moon.us/wiki/Fra%20Mauro Fra Mauro] formation<br />
 
| Apollo 14 landing site on Imbrium ejecta<br />
 
| Apollo 14 landing site on Imbrium ejecta<br />
 
| 3.6S<br />
 
| 3.6S<br />
Line 643: Line 642:
 
| 69<br />
 
| 69<br />
 
|
 
|
−
[http://www.lpod.org/?m=20060623 Copernicus secondary craters]<br />
+
[http://www2.lpod.org/wiki/June_23,_2006 Copernicus secondary craters]<br />
 
| Rays & craterlets near Pytheas<br />
 
| Rays & craterlets near Pytheas<br />
 
| 19.6N<br />
 
| 19.6N<br />
Line 652: Line 651:
 
| 70<br />
 
| 70<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/MARE%20HUMBOLDTIANUM Humboldtianum] basin<br />
+
[http://the-moon.us/wiki/MARE%20HUMBOLDTIANUM Humboldtianum] basin<br />
 
| Multi-ring impact basin<br />
 
| Multi-ring impact basin<br />
 
| 57.0N<br />
 
| 57.0N<br />
Line 661: Line 660:
 
| 71<br />
 
| 71<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Sulpicius%20Gallus Sulpicius Gallus] dark mantle<br />
+
[http://the-moon.us/wiki/Sulpicius%20Gallus Sulpicius Gallus] dark mantle<br />
 
| Ash eruptions northwest of crater<br />
 
| Ash eruptions northwest of crater<br />
 
| 19.6N<br />
 
| 19.6N<br />
Line 670: Line 669:
 
| 72<br />
 
| 72<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Atlas Atlas] dark-halo craters<br />
+
[http://the-moon.us/wiki/Atlas Atlas] dark-halo craters<br />
 
| Explosive volcanic pits on the floor of Atlas<br />
 
| Explosive volcanic pits on the floor of Atlas<br />
 
| 46.7N<br />
 
| 46.7N<br />
Line 679: Line 678:
 
| 73<br />
 
| 73<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Mare%20Smythii Smythii] basin<br />
+
[http://the-moon.us/wiki/Mare%20Smythii Smythii] basin<br />
 
| Difficult-to-observe basin scarp & mare<br />
 
| Difficult-to-observe basin scarp & mare<br />
 
| 2.0S<br />
 
| 2.0S<br />
Line 704: Line 703:
 
| 76<br />
 
| 76<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/W.%20Bond W. Bond]<br />
+
[http://the-moon.us/wiki/W.%20Bond W. Bond]<br />
 
| Large crater degraded by Imbrium ejecta<br />
 
| Large crater degraded by Imbrium ejecta<br />
 
| 65.3N<br />
 
| 65.3N<br />
Line 713: Line 712:
 
| 77<br />
 
| 77<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Rimae%20Sirsalis Sirsalis Rille]<br />
+
[http://the-moon.us/wiki/Rimae%20Sirsalis Sirsalis Rille]<br />
 
| Procellarum basin radial rilles<br />
 
| Procellarum basin radial rilles<br />
 
| 15.7S<br />
 
| 15.7S<br />
Line 730: Line 729:
 
| 79<br />
 
| 79<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Sinus%20Aestuum Sinus Aestuum]<br />
+
[http://the-moon.us/wiki/Sinus%20Aestuum Sinus Aestuum]<br />
 
| Eastern dark-mantle volcanic deposit<br />
 
| Eastern dark-mantle volcanic deposit<br />
 
| 12.0N<br />
 
| 12.0N<br />
Line 739: Line 738:
 
| 80<br />
 
| 80<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Mare%20Orientale Orientale basin]<br />
+
[http://the-moon.us/wiki/Mare%20Orientale Orientale basin]<br />
 
| Youngest large impact basin<br />
 
| Youngest large impact basin<br />
 
| 19.0S<br />
 
| 19.0S<br />
Line 756: Line 755:
 
| 82<br />
 
| 82<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Linn%C3%A9 Linné]<br />
+
[http://the-moon.us/wiki/Linn%C3%A9 Linné]<br />
 
| Small crater once thought to have disappeared<br />
 
| Small crater once thought to have disappeared<br />
 
| 27.7N<br />
 
| 27.7N<br />
Line 765: Line 764:
 
| 83<br />
 
| 83<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Plato Plato] craterlets<br />
+
[http://the-moon.us/wiki/Plato Plato] craterlets<br />
 
| Crater pits at limits of detection<br />
 
| Crater pits at limits of detection<br />
 
| 51.6N<br />
 
| 51.6N<br />
Line 774: Line 773:
 
| 84<br />
 
| 84<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Pitatus Pitatus]<br />
+
[http://the-moon.us/wiki/Pitatus Pitatus]<br />
 
| Crater with concentric rilles<br />
 
| Crater with concentric rilles<br />
 
| 29.8S<br />
 
| 29.8S<br />
Line 783: Line 782:
 
| 85<br />
 
| 85<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Langrenus Langrenus] rays<br />
+
[http://the-moon.us/wiki/Langrenus Langrenus] rays<br />
 
| Aged ray system<br />
 
| Aged ray system<br />
 
| 8.9S<br />
 
| 8.9S<br />
Line 792: Line 791:
 
| 86<br />
 
| 86<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Rimae%20Prinz Prinz Rilles]<br />
+
[http://the-moon.us/wiki/Rimae%20Prinz Prinz Rilles]<br />
 
| Rille system near the crater Prinz<br />
 
| Rille system near the crater Prinz<br />
 
| 27.0N<br />
 
| 27.0N<br />
Line 801: Line 800:
 
| 87<br />
 
| 87<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Humboldt Humboldt]<br />
+
[http://the-moon.us/wiki/Humboldt Humboldt]<br />
 
| Crater with central peaks & dark spots<br />
 
| Crater with central peaks & dark spots<br />
 
| 27.0S<br />
 
| 27.0S<br />
Line 810: Line 809:
 
| 88<br />
 
| 88<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Peary Peary]<br />
+
[http://the-moon.us/wiki/Peary Peary]<br />
 
| Difficult-to-observe polar crater<br />
 
| Difficult-to-observe polar crater<br />
 
| 88.6N<br />
 
| 88.6N<br />
Line 819: Line 818:
 
| 89<br />
 
| 89<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Valentine%20Dome Valentine Dome]<br />
+
[http://the-moon.us/wiki/Valentine%20Dome Valentine Dome]<br />
 
| Volcanic dome<br />
 
| Volcanic dome<br />
 
| 30.5N<br />
 
| 30.5N<br />
Line 828: Line 827:
 
| 90<br />
 
| 90<br />
 
|
 
|
−
"[http://the-moon.wikispaces.com/Armstrong Armstrong], [http://the-moon.wikispaces.com/Aldrin Aldrin] & [http://the-moon.wikispaces.com/Collins Collins]"<br />
+
"[http://the-moon.us/wiki/Armstrong Armstrong], [http://the-moon.us/wiki/Aldrin Aldrin] & [http://the-moon.us/wiki/Collins Collins]"<br />
 
| Small craters near the Apollo 11 landing site<br />
 
| Small craters near the Apollo 11 landing site<br />
 
| 1.3N<br />
 
| 1.3N<br />
Line 837: Line 836:
 
| 91<br />
 
| 91<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Rimae%20de%20Gasparis De Gasparis Rilles]<br />
+
[http://the-moon.us/wiki/Rimae%20de%20Gasparis De Gasparis Rilles]<br />
 
| Area with many rilles<br />
 
| Area with many rilles<br />
 
| 25.9S<br />
 
| 25.9S<br />
Line 846: Line 845:
 
| 92<br />
 
| 92<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Gyld%C3%A9n Gylden] Valley<br />
+
[http://the-moon.us/wiki/Gyld%C3%A9n Gylden] Valley<br />
 
| Part of the Imbrium radial sculpture<br />
 
| Part of the Imbrium radial sculpture<br />
 
| 5.1S<br />
 
| 5.1S<br />
Line 855: Line 854:
 
| 93<br />
 
| 93<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Dionysius Dionysius] rays<br />
+
[http://the-moon.us/wiki/Dionysius Dionysius] rays<br />
 
| Unusual & rare dark rays<br />
 
| Unusual & rare dark rays<br />
 
| 2.8N<br />
 
| 2.8N<br />
Line 864: Line 863:
 
| 94<br />
 
| 94<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Drygalski Drygalski]<br />
+
[http://the-moon.us/wiki/Drygalski Drygalski]<br />
 
| Large south-pole region crater<br />
 
| Large south-pole region crater<br />
 
| 79.3S<br />
 
| 79.3S<br />
Line 873: Line 872:
 
| 95<br />
 
| 95<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Oceanus%20Procellarum Procellarum basin]<br />
+
[http://the-moon.us/wiki/Oceanus%20Procellarum Procellarum basin]<br />
 
| The Moon's biggest basin?<br />
 
| The Moon's biggest basin?<br />
 
| 23.0N<br />
 
| 23.0N<br />
Line 882: Line 881:
 
| 96<br />
 
| 96<br />
 
|
 
|
−
[/Montes%20Leibnitz Leibnitz ]Mountains<br />
+
[[Montes%20Leibnitz|Leibnitz ]]Mountains<br />
 
| Rim of South Pole-Aitken basin<br />
 
| Rim of South Pole-Aitken basin<br />
 
| 85.0S<br />
 
| 85.0S<br />
Line 891: Line 890:
 
| 97<br />
 
| 97<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Vallis%20Inghirami Inghirami Valley]<br />
+
[http://the-moon.us/wiki/Vallis%20Inghirami Inghirami Valley]<br />
 
| Orientale basin ejecta<br />
 
| Orientale basin ejecta<br />
 
| 44.0S<br />
 
| 44.0S<br />
Line 900: Line 899:
 
| 98<br />
 
| 98<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Mare%20Imbrium Imbrium] lava flows<br />
+
[http://the-moon.us/wiki/Mare%20Imbrium Imbrium] lava flows<br />
 
| Mare lava-flow boundaries<br />
 
| Mare lava-flow boundaries<br />
 
| 32.8N<br />
 
| 32.8N<br />
Line 909: Line 908:
 
| 99<br />
 
| 99<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Ina Ina]<br />
+
[http://the-moon.us/wiki/Ina Ina]<br />
 
| D-shaped young volcanic caldera<br />
 
| D-shaped young volcanic caldera<br />
 
| 18.6N<br />
 
| 18.6N<br />
Line 918: Line 917:
 
| 100<br />
 
| 100<br />
 
|
 
|
−
[http://the-moon.wikispaces.com/Mare%20Marginis Mare Marginis] swirls<br />
+
[http://the-moon.us/wiki/Mare%20Marginis Mare Marginis] swirls<br />
 
| Possible magnetic field deposits<br />
 
| Possible magnetic field deposits<br />
 
| 18.5N<br />
 
| 18.5N<br />
Line 927: Line 926:
 
<br />  
 
<br />  
 
==Additional Information==
 
==Additional Information==
−
  The '''<u>Lunar 101-200</u>''' (a list of 100 lunar surface formations of which each one is worthwile to observe through powerful amateur-telescopes) is not yet online, but could be an important guide for those who want to know much more about really bizarre shaped craterlets and hillocks on the moon's near side. The first one in the <u>Lunar 101-200</u> list (Number <u>101</u>) could be the partially buried craterlet at the southeastern slope of the hill '''Euler Gamma'''. See: [http://the-moon.wikispaces.com/Partially%20Buried%20Craters Partially Buried Craters]. <span class="membersnap">- [http://www.wikispaces.com/user/view/DannyCaes [[Image:DannyCaes-lg.jpg|16px|DannyCaes]]] [http://www.wikispaces.com/user/view/DannyCaes DannyCaes] <small>Dec 6, 2008</small></span><br />  Number <u>102</u>? Might be the triplet at '''Encke M''' (east of [http://the-moon.wikispaces.com/Encke Encke]).<br />  Number <u>103</u>? Might be the unnamed twin-craterlets west of NASA's '''''Hill 305''''' (aka '''Fresnel Ridge''' near '''Rima Hadley''').<br />  Number <u>104</u>? (??).<br /> ''To be continued... (perhaps on a new page).''<br /> <br />  
+
  The '''<u>Lunar 101-200</u>''' (a list of 100 lunar surface formations of which each one is worthwile to observe through powerful amateur-telescopes) is not yet online, but could be an important guide for those who want to know much more about really bizarre shaped craterlets and hillocks on the moon's near side. The first one in the <u>Lunar 101-200</u> list (Number <u>101</u>) could be the partially buried craterlet at the southeastern slope of the hill '''Euler Gamma'''. See: [http://the-moon.us/wiki/Partially%20Buried%20Craters Partially Buried Craters]. <span class="membersnap">- DannyCaes <small>Dec 6, 2008</small></span><br />  Number <u>102</u>? Might be the triplet at '''Encke M''' (east of [http://the-moon.us/wiki/Encke Encke]).<br />  Number <u>103</u>? Might be the unnamed twin-craterlets west of NASA's '''''Hill 305''''' (aka '''Fresnel Ridge''' near '''Rima Hadley''').<br />  Number <u>104</u>? (??).<br /> ''To be continued... (perhaps on a new page).''<br /> <br />  
 
==Other Observing Programs==
 
==Other Observing Programs==
−
* [http://the-moon.wikispaces.com/Astronomical%20League%20Lunar%20100%20Observing%20Program Astronomical League Lunar 100 Program].
+
* [http://the-moon.us/wiki/Astronomical%20League%20Lunar%20100%20Observing%20Program Astronomical League Lunar 100 Program].
−
* [http://the-moon.wikispaces.com/Isabel%20Williamson%20Lunar%20Observing%20Program Isabel Williamson Lunar Observing Program].
+
* [http://the-moon.us/wiki/Isabel%20Williamson%20Lunar%20Observing%20Program Isabel Williamson Lunar Observing Program].
 
<br />  
 
<br />  
 
==LPOD Articles==
 
==LPOD Articles==
−
[http://www.lpod.org/?page_id=583 LPOD LUNAR 100]<br /> [http://www.lpod.org/archive/archive/2004/05/LPOD-2004-05-22.htm Lunar 100]<br /> <br />  
+
[http://www.lpod.org/?page_id=583 LPOD LUNAR 100]<br /> [http://www2.lpod.org/wiki/May_22,_2004 Lunar 100]<br /> <br />  
 
==Lunar 100 Links==
 
==Lunar 100 Links==
 
[http://www.kerryastronomyclub.com/lunar100.htm Kerry Astronomy Club], Ireland<br /> [http://www.eastvalleyastronomy.org/downloads/OTL100.pdf Observing the Lunar 100], East Valley Astronomy Club, AZ<br /> [http://www.rtpnet.org/~rac/obsprograms/Lunar%20100%20List_1.2.pdf Lunar 100 Observing Club], Raleigh Astronomy Club, NC<br /> [http://www.lunar-captures.com/lunar_100.html George Tarsoudis], Greece<br /> <br />  
 
[http://www.kerryastronomyclub.com/lunar100.htm Kerry Astronomy Club], Ireland<br /> [http://www.eastvalleyastronomy.org/downloads/OTL100.pdf Observing the Lunar 100], East Valley Astronomy Club, AZ<br /> [http://www.rtpnet.org/~rac/obsprograms/Lunar%20100%20List_1.2.pdf Lunar 100 Observing Club], Raleigh Astronomy Club, NC<br /> [http://www.lunar-captures.com/lunar_100.html George Tarsoudis], Greece<br /> <br />  
Line 939: Line 938:
 
  Chuck Wood (2004) [http://www.skyandtelescope.com/observing/objects/moon/3308811.html?page=1&c=y The Lunar 100] -- ''original '''Sky and Telescope''' article (on-line)''<br />  Chuck Wood (2004) [http://www.shopatsky.com/productdetail/L100P.htm Lunar 100 Card]<br /> <br /> <br />
 
  Chuck Wood (2004) [http://www.skyandtelescope.com/observing/objects/moon/3308811.html?page=1&c=y The Lunar 100] -- ''original '''Sky and Telescope''' article (on-line)''<br />  Chuck Wood (2004) [http://www.shopatsky.com/productdetail/L100P.htm Lunar 100 Card]<br /> <br /> <br />
 
----
 
----
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  This page has been edited 1 times. The last modification was made by <span class="membersnap">- [http://www.wikispaces.com/user/view/tychocrater [[Image:tychocrater-lg.jpg|16px|tychocrater]]] [http://www.wikispaces.com/user/view/tychocrater tychocrater]</span> on Jun 13, 2009 3:24 pm</div>
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Latest revision as of 17:35, 15 April 2018

Lunar 100

Description

The Lunar 100 list is an attempt to provide Moon lovers with something akin to what deep-sky observers enjoy with the Messier catalog: a selection of telescopic sights to ignite interest and enhance understanding. Presented here is a selection of the Moon's 100 most interesting regions, craters, basins, mountains, rilles, and domes. I challenge observers to find and observe them all and, more important, to consider what each feature tells us about lunar and Earth history.
 
 (Note: Chuck Wood's Lunar 100 originated in his column in the popular astronomy magazine Sky and Telescope, and the primary reference describing it remains the 2004 S&T article cited at the end. Individual features on the list were described at length in subsequent columns.)

Lunar 100 List


L
 Feature Name
 Significance
 Lat. (°)
 Long. (°)
 Diam. (km)
 Rükl Chart
1

Moon

 Large satellite
 —
 —
 "3,476"
 —
2

Earthshine

 Twice reflected sunlight
 —
 —
 —
 —
3

Mare/highland dichotomy

 Two materials with distinct compositions
 —
 —
 —
 —
4

Apennines

 Imbrium basin rim
 18.9N
 3.7W
 70

22

5

Copernicus

 Archetypal large complex crater
 9.7N
 20.1W
 93

31

6

Tycho

 Large rayed crater with impact melts
 43.4S
 11.1W
 85

64

7

Altai Scarp

 Nectaris basin rim
 24.3S
 22.6E
 425

57

8

Theophilus, Cyrillus, Catharina

 Crater sequence illustrating stages of degradation
 13.2S
 24.0E
 —

46, 57

9

Clavius

 Lacks basin features in spite of its size
 58.8S
 14.1W
 225

72

10

Mare Crisium

 Mare contained in large circular basin
 18.0N
 59.0E
 540

26, 27, 37, 38

11

Aristarchus

 Very bright crater with dark bands on its walls
 23.7N
 47.4W
 40

18

12

Proclus

 Oblique-impact rays
 16.1N
 46.8E
 28

26

13

Gassendi

 Floor-fractured crater
 17.6S
 40.1W
 101

52

14

Sinus Iridum

 Very large crater with missing rim
 45.0N
 32.0W
 260

10

15

Straight Wall

 Best example of a lunar fault
 21.8S
 7.8W
 110

54

16

Petavius

 Crater with domed & fractured floor
 25.1S
 60.4E
 177

59

17

Schröter's Valley

 Giant sinuous rille
 26.2N
 50.8W
 168
 18
18

Mare Serenitatis dark edges

 Distinct mare areas with different compositions
 17.8N
 23.0E
 N/A
 24
19

Alpine Valley

 Lunar graben
 49.0N
 3.0E
 165
 4
20

Posidonius

 Floor-fractured crater
 31.8N
 29.9E
 95
 14
21

Fracastorius

 Crater with subsided & fractured floor
 21.5S
 33.2E
 124
 58
22

Aristarchus Plateau

 Mysterious uplifted region mantled with pyroclastics
 26.0N
 51.0W
 150
 18
23

Pico

 Isolated Imbrium basin-ring fragment
 45.7N
 8.9W
 25
 11
24

Hyginus Rille

 Rille containing rimless collapse pits
 7.4N
 7.8E
 220
 34
25

Messier & Messier A

 Oblique ricochet-impact pair
 1.9S
 47.6E
 11
 48
26

Mare Frigoris

 Arcuate mare of uncertain origin
 56.0N
 1.4E
 1600
 2–6
27

Archimedes

 Large crater lacking central peak
 29.7N
 4.0W
 83
 "12, 22"
28

Hipparchus

 First drawing of a single crater
 5.5S
 4.8E
 150
 "44, 45"
29

Aridaeus Rille

 "Long, linear graben"
 6.4N
 14.0E
 250
 34
30

Schiller

 Possible oblique impact
 51.9S
 39.0W
 180
 71
31

Taruntius

 Young floor-fractured crater
 5.6N
 46.5E
 56
 37
32

Arago Alpha & Beta

 Volcanic domes
 6.2N
 21.4E
 26
 35
33

Serpentine Ridge

 Basin inner-ring segment
 27.3N
 25.3E
 155
 24
34

Lacus Mortis

 Strange crater with rille & ridge
 45.0N
 27.2E
 152
 14
35

Triesnecker Rilles

 Rille family
 4.3N
 4.6E
 215
 33
36

Grimaldi basin

 A small two-ring basin
 5.5S
 68.3W
 440
 39
37

Bailly

 Barely discernible basin
 66.5S
 69.1W
 303
 71
38

Sabine & Ritter

 Possible twin impacts
 1.7N
 19.7E
 30
 35
39

Schickard

 Crater floor with Orientale basin ejecta stripe
 44.3S
 55.3W
 227
 62
40

Janssen Rille

 Rare example of a highland rille
 45.4S
 39.3E
 190
 "67, 68"
41

Bessel ray

 Ray of uncertain origin near Bessel
 21.8N
 17.9E
 N/A
 24
42

Marius Hills

 Complex of volcanic domes & hills
 12.5N
 54.0W
 125
 "28, 29"
43

Wargentin

 A crater filled to the rim with lava or ejecta
 49.6S
 60.2W
 84
 70
44

Mersenius

 Domed floor cut by secondary craters
 21.5S
 49.2W
 84
 51
45

Maurolycus

 Region of saturation cratering
 42.0S
 14.0E
 114
 66
46

Regiomontanus central peak

 Possible volcanic peak
 28.0S
 0.6W
 124
 55
47

Alphonsus dark spots

 Dark-halo eruptions on crater floor
 13.7S
 3.2W
 119
 44
48

Cauchy region

 "Fault, rilles, & domes"
 10.5N
 38.0E
 130
 36
49

Gruithuisen Delta & Gamma

 Volcanic domes formed with viscous lavas
 36.3N
 40.0W
 20
 9
50

Cayley Plains

 "Light, smooth plains of uncertain origin"
 4.0N
 15.1E
 14
 34
51

Davy crater chain

 Result of comet-fragment impacts
 11.1S
 6.6W
 50
 43
52

Crüger

 Possible volcanic caldera
 16.7S
 66.8W
 45
 50
53

Lamont

 Possible buried basin
 4.4N
 23.7E
 106
 35
54

Hippalus Rilles

 Rilles concentric to Humorum basin
 24.5S
 29.0W
 240
 "52, 53"
55

Baco

 Unusually smooth crater floor & surrounding plains
 51.0S
 19.1E
 69
 74
56

Australe basin

 A partially flooded ancient basin
 49.8S
 84.5E
 880
 76
57

Reiner Gamma

 Conspicuous swirl & magnetic anomaly
 7.7N
 59.2W
 70
 28
58

Rheita Valley

 Basin secondary-crater chain
 42.5S
 51.5E
 445
 68
59

Schiller-Zucchius basin

 Badly degraded overlooked basin
 56.0S
 45.0W
 335
 "70, 71"
60

Kies Pi

 Volcanic dome
 26.9S
 24.2W
 45
 53
61

Mösting A

 Simple crater close to center of lunar near side
 3.2S
 5.2W
 13
 43
62

Rümker

 Large volcanic dome
 40.8N
 58.1W
 70
 8
63
 Imbrium sculpture

Basin ejecta near & overlying Boscovich & Julius Caesar

 11.0N
 12.0E
 —
 34
64

Descartes

 Apollo 16 landing site; putative region of highland volcanism
 11.7S
 15.7E
 48
 45
65

Hortensius domes

 Dome field north of Hortensius
 7.6N
 27.9W
 10
 30
66

Hadley Rille

 Lava channel near Apollo 15 landing site
 25.0N
 3.0E
 —
 22
67

Fra Mauro formation

 Apollo 14 landing site on Imbrium ejecta
 3.6S
 17.5W
 —
 42
68
 Flamsteed P
 Proposed young volcanic crater & Surveyor 1 landing site
 3.0S
 44.0W
 112
 40
69

Copernicus secondary craters

 Rays & craterlets near Pytheas
 19.6N
 19.1W
 4
 20
70

Humboldtianum basin

 Multi-ring impact basin
 57.0N
 80.0E
 650
 7
71

Sulpicius Gallus dark mantle

 Ash eruptions northwest of crater
 19.6N
 11.6E
 12
 23
72

Atlas dark-halo craters

 Explosive volcanic pits on the floor of Atlas
 46.7N
 44.4E
 87
 15
73

Smythii basin

 Difficult-to-observe basin scarp & mare
 2.0S
 87.0E
 740
 "38, 49"
74
 Copernicus H
 Dark-halo impact crater
 6.9N
 18.3W
 5
 31
75
 Ptolemaeus B
 Saucer like depression on the floor of Ptolemaeus
 8.0S
 0.8W
 16
 44
76

W. Bond

 Large crater degraded by Imbrium ejecta
 65.3N
 3.7E
 158
 4
77

Sirsalis Rille

 Procellarum basin radial rilles
 15.7S
 61.7W
 425
 "39, 50"
78
 Lambert R
 "A buried ""ghost"" crater"
 23.8N
 20.6W
 54
 20
79

Sinus Aestuum

 Eastern dark-mantle volcanic deposit
 12.0N
 3.5W
 90
 33
80

Orientale basin

 Youngest large impact basin
 19.0S
 95.0W
 930
 50
81
 Hesiodus A
 Concentric crater
 30.1S
 17.0W
 15
 54
82

Linné

 Small crater once thought to have disappeared
 27.7N
 11.8E
 2.4
 23
83

Plato craterlets

 Crater pits at limits of detection
 51.6N
 9.4W
 101
 "3, 4"
84

Pitatus

 Crater with concentric rilles
 29.8S
 13.5W
 97
 54
85

Langrenus rays

 Aged ray system
 8.9S
 60.9E
 132
 49
86

Prinz Rilles

 Rille system near the crater Prinz
 27.0N
 43.0W
 46
 19
87

Humboldt

 Crater with central peaks & dark spots
 27.0S
 80.9E
 207
 60
88

Peary

 Difficult-to-observe polar crater
 88.6N
 33.0E
 74
 "4, II"
89

Valentine Dome

 Volcanic dome
 30.5N
 10.1E
 30
 13
90

"Armstrong, Aldrin & Collins"

 Small craters near the Apollo 11 landing site
 1.3N
 23.7E
 3
 35
91

De Gasparis Rilles

 Area with many rilles
 25.9S
 50.7W
 30
 51
92

Gylden Valley

 Part of the Imbrium radial sculpture
 5.1S
 0.7E
 47
 44
93

Dionysius rays

 Unusual & rare dark rays
 2.8N
 17.3E
 18
 35
94

Drygalski

 Large south-pole region crater
 79.3S
 84.9W
 162
 "72, VI"
95

Procellarum basin

 The Moon's biggest basin?
 23.0N
 15.0W
 3200
 —
96

Leibnitz Mountains

 Rim of South Pole-Aitken basin
 85.0S
 30.0E
 —
 "73, V"
97

Inghirami Valley

 Orientale basin ejecta
 44.0S
 73.0W
 140
 61
98

Imbrium lava flows

 Mare lava-flow boundaries
 32.8N
 22.0W
 —
 10
99

Ina

 D-shaped young volcanic caldera
 18.6N
 5.3E
 3
 22
100

Mare Marginis swirls

 Possible magnetic field deposits
 18.5N
 88.0E
 —
 "27, III"


Additional Information

The Lunar 101-200 (a list of 100 lunar surface formations of which each one is worthwile to observe through powerful amateur-telescopes) is not yet online, but could be an important guide for those who want to know much more about really bizarre shaped craterlets and hillocks on the moon's near side. The first one in the Lunar 101-200 list (Number 101) could be the partially buried craterlet at the southeastern slope of the hill Euler Gamma. See: Partially Buried Craters. - DannyCaes Dec 6, 2008
  Number 102? Might be the triplet at Encke M (east of Encke).
  Number 103? Might be the unnamed twin-craterlets west of NASA's Hill 305 (aka Fresnel Ridge near Rima Hadley).
  Number 104? (??).
 To be continued... (perhaps on a new page).

Other Observing Programs


LPOD Articles

LPOD LUNAR 100
Lunar 100

Lunar 100 Links

Kerry Astronomy Club, Ireland
Observing the Lunar 100, East Valley Astronomy Club, AZ
Lunar 100 Observing Club, Raleigh Astronomy Club, NC
George Tarsoudis, Greece

Bibliography

Chuck Wood (2004) The Lunar 100 -- original Sky and Telescope article (on-line)
  Chuck Wood (2004) Lunar 100 Card
Retrieved from "http://the-moon.us/index.php?title=Lunar_100&oldid=11782"