Difference between revisions of "Eratosthenes"

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(Created page with "<div id="content_view" class="wiki" style="display: block"> =Eratosthenes= {| class="wiki_table" | Lat: 14.5°N, Long: 11.3°W, Diam: 58 km, Depth: 3.43 km, [http://the-mo...")
 
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Lat: 14.5°N, Long: 11.3°W, Diam: 58 km, Depth: 3.43 km, [http://the-moon.wikispaces.com/R%C3%BCkl%2021 Rükl: 21], [http://the-moon.wikispaces.com/Stratigraphy Eratosthenian]<br />
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Lat: 14.5°N, Long: 11.3°W, Diam: 58 km, Depth: 3.43 km, [http://the-moon.us/wiki/R%C3%BCkl%2021 Rükl: 21], [http://the-moon.us/wiki/Stratigraphy Eratosthenian]<br />
 
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<br />  
 
<br />  
 
==Maps==
 
==Maps==
''([http://the-moon.wikispaces.com/LAC%20zone LAC zone] 58B2)'' [http://www.lpi.usra.edu/resources/mapcatalog/LAC/lac58/ LAC map] [http://www.lpi.usra.edu/resources/mapcatalog/usgs/I515/ Geologic map]<br /> <br />  IAU page: [http://planetarynames.wr.usgs.gov/Feature/1820 Eratosthenes]<br /> <br />  
+
''([http://the-moon.us/wiki/LAC%20zone LAC zone] 58B2)'' [http://www.lpi.usra.edu/resources/mapcatalog/LAC/lac58/ LAC map] [http://www.lpi.usra.edu/resources/mapcatalog/usgs/I515/ Geologic map]<br /> <br />  IAU page: [http://planetarynames.wr.usgs.gov/Feature/1820 Eratosthenes]<br /> <br />  
 
==Description==
 
==Description==
 
<br />  
 
<br />  
 
==Description: Elger==
 
==Description: Elger==
''([http://the-moon.wikispaces.com/IAU%20Directions IAU Directions])'' ERATOSTHENES.--A noble ring-plain, 38 miles in diameter; a worthy termination of the [http://the-moon.wikispaces.com/Apennine%20Mts Apennines]. The best view of it is obtained under morning illumination when the interior is about half-filled with shadow. At this phase the many irregular terraces on the inner slope of the W. wall (which rises at one peak 16,000 feet above an interior depressed 8,000 feet below the [http://the-moon.wikispaces.com/Imbrium%2C%20Mare Mare Imbrium]) are seen to the best advantage. The central mountain is made up of two principal peaks, nearly central, from which two bright curved hills extend nearly up to the N.E. wall,--the whole forming a V-shaped arrangement. On the S. there is a narrow break in the wall, and the S.E. section of it seems to overlap and extend some distance beyond the S.W. section. The border on the S.E. is remarkable for the great width of its <u>glacis</u>. Eratosthenes exhibits a marked departure from circularity, especially on the W., where the wall consists of two well-marked linear sections, with an intermediate portion where the crest for 20 miles or more bends inwards or towards the centre. From the S.W. flank of this formation extends towards the E. side of [http://the-moon.wikispaces.com/Stadius Stadius] one of the grandest mountain arms on the moon's visible surface, rising at one place 9,000 feet, and in two others 5,000 and 3,000 feet respectively above the [http://the-moon.wikispaces.com/Imbrium%2C%20Mare Mare Imbrium]) . If this magnificent object is observed when the morning terminator falls a little W. of [http://the-moon.wikispaces.com/Stadius Stadius], it affords a spectacle not easily forgotten. I have often seen it at this phase when its broad mass of shadow extended across the well-known crater-row E. of [http://the-moon.wikispaces.com/Copernicus Copernicus], some of the component craters appearing between the spires of shade representing the loftiest peaks on the mountain arm. There is a prominent little crater on the crest of the arm between two of the peaks, and another on the plain to the east.<br /> <br />  
+
''([http://the-moon.us/wiki/IAU%20Directions IAU Directions])'' ERATOSTHENES.--A noble ring-plain, 38 miles in diameter; a worthy termination of the [http://the-moon.us/wiki/Apennine%20Mts Apennines]. The best view of it is obtained under morning illumination when the interior is about half-filled with shadow. At this phase the many irregular terraces on the inner slope of the W. wall (which rises at one peak 16,000 feet above an interior depressed 8,000 feet below the [http://the-moon.us/wiki/Imbrium%2C%20Mare Mare Imbrium]) are seen to the best advantage. The central mountain is made up of two principal peaks, nearly central, from which two bright curved hills extend nearly up to the N.E. wall,--the whole forming a V-shaped arrangement. On the S. there is a narrow break in the wall, and the S.E. section of it seems to overlap and extend some distance beyond the S.W. section. The border on the S.E. is remarkable for the great width of its <u>glacis</u>. Eratosthenes exhibits a marked departure from circularity, especially on the W., where the wall consists of two well-marked linear sections, with an intermediate portion where the crest for 20 miles or more bends inwards or towards the centre. From the S.W. flank of this formation extends towards the E. side of [http://the-moon.us/wiki/Stadius Stadius] one of the grandest mountain arms on the moon's visible surface, rising at one place 9,000 feet, and in two others 5,000 and 3,000 feet respectively above the [http://the-moon.us/wiki/Imbrium%2C%20Mare Mare Imbrium]) . If this magnificent object is observed when the morning terminator falls a little W. of [http://the-moon.us/wiki/Stadius Stadius], it affords a spectacle not easily forgotten. I have often seen it at this phase when its broad mass of shadow extended across the well-known crater-row E. of [http://the-moon.us/wiki/Copernicus Copernicus], some of the component craters appearing between the spires of shade representing the loftiest peaks on the mountain arm. There is a prominent little crater on the crest of the arm between two of the peaks, and another on the plain to the east.<br /> <br />  
 
==Description: Wikipedia==
 
==Description: Wikipedia==
 
[http://en.wikipedia.org/wiki/Eratosthenes_(crater) Eratosthenes]<br /> <br />  
 
[http://en.wikipedia.org/wiki/Eratosthenes_(crater) Eratosthenes]<br /> <br />  
 
==Additional Information==
 
==Additional Information==
  
* Depth data from [http://the-moon.wikispaces.com/Kurt%20Fisher%20crater%20depths Kurt Fisher database]
+
* Depth data from [http://the-moon.us/wiki/Kurt%20Fisher%20crater%20depths Kurt Fisher database]
 
** Pike, 1976: 3.43 km
 
** Pike, 1976: 3.43 km
 
** Westfall, 2000: 3.43 km
 
** Westfall, 2000: 3.43 km
 
** Viscardy, 1985: 3.57 km
 
** Viscardy, 1985: 3.57 km
 
** Cherrington, 1969: 3.74 km
 
** Cherrington, 1969: 3.74 km
* West rim slope 47° ([http://the-moon.wikispaces.com/Pohn%2C%201963 Pohn, 1963])
+
* West rim slope 47° ([http://the-moon.us/wiki/Pohn%2C%201963 Pohn, 1963])
* [http://the-moon.wikispaces.com/Central%20peak%20composition Central peak composition]: A, GNTA1, GNTA2 & AGN ([http://the-moon.wikispaces.com/Tompkins%20%26%20Pieters%2C%201999 Tompkins & Pieters, 1999])
+
* [http://the-moon.us/wiki/Central%20peak%20composition Central peak composition]: A, GNTA1, GNTA2 & AGN ([http://the-moon.us/wiki/Tompkins%20%26%20Pieters%2C%201999 Tompkins & Pieters, 1999])
* Sekiguchi provides a wonderful map with measured interior features. The tallest peak rises 1.2 km above the crater floor [http://the-moon.wikispaces.com/Sekiguchi%2C%201972 Sekiguchi, 1972]. <span class="membersnap">- [http://www.wikispaces.com/user/view/fatastronomer [[Image:fatastronomer-lg.jpg|16px|fatastronomer]]] [http://www.wikispaces.com/user/view/fatastronomer fatastronomer]</span>
+
* Sekiguchi provides a wonderful map with measured interior features. The tallest peak rises 1.2 km above the crater floor [http://the-moon.us/wiki/Sekiguchi%2C%201972 Sekiguchi, 1972]. <span class="membersnap">- [http://www.wikispaces.com/user/view/fatastronomer [[Image:fatastronomer-lg.jpg|16px|fatastronomer]]] [http://www.wikispaces.com/user/view/fatastronomer fatastronomer]</span>
* [http://the-moon.wikispaces.com/Moore%20et%20al%2C%201980 Moore et al, 1980] report a thermal anomaly feature at a dome near '''Eratosthenes A'''. Domes are unlikely to be young, nor to have steep slopes, so it is unusual that one would be a thermal cooling anomaly.
+
* [http://the-moon.us/wiki/Moore%20et%20al%2C%201980 Moore et al, 1980] report a thermal anomaly feature at a dome near '''Eratosthenes A'''. Domes are unlikely to be young, nor to have steep slopes, so it is unusual that one would be a thermal cooling anomaly.
* The type crater for the, Eratosthenian [http://the-moon.wikispaces.com/Stratigraphy stratigraphic period] in lunar history.
+
* The type crater for the, Eratosthenian [http://the-moon.us/wiki/Stratigraphy stratigraphic period] in lunar history.
 
* During the mission of Apollo 17 in december 1972, crater '''Eratosthenes''' was photographed in earthlight. This happened when CSM ''America'' was directly above Eratosthenes, when the lunar sunrise-terminator was still too eastward. These earthlight photographs are included in Apollo 17's Magazine 158-WW (35mm NIKON B&W photographs), see: [http://www.lpi.usra.edu/resources/mapcatalog/apolloindex/apollo17/as17indexmap08/ Sheet 8 of A17's Index Maps]. Some of those photographs were reproduced in the ''Apollo 17 Preliminary Science Report''. <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 22, 2007</small></span>
 
* During the mission of Apollo 17 in december 1972, crater '''Eratosthenes''' was photographed in earthlight. This happened when CSM ''America'' was directly above Eratosthenes, when the lunar sunrise-terminator was still too eastward. These earthlight photographs are included in Apollo 17's Magazine 158-WW (35mm NIKON B&W photographs), see: [http://www.lpi.usra.edu/resources/mapcatalog/apolloindex/apollo17/as17indexmap08/ Sheet 8 of A17's Index Maps]. Some of those photographs were reproduced in the ''Apollo 17 Preliminary Science Report''. <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 22, 2007</small></span>
* TSI = 35, CPI = 20, FI = 20; MI =75 [http://the-moon.wikispaces.com/Smith%20and%20Sanchez%2C%201973 Smith and Sanchez, 1973]
+
* TSI = 35, CPI = 20, FI = 20; MI =75 [http://the-moon.us/wiki/Smith%20and%20Sanchez%2C%201973 Smith and Sanchez, 1973]
 
* <u>'''WARNING'''</u>: Those who want to create a large assembled moonmap of Antonin Rukl's 76 small charts (of the moon's near side from his ''Atlas of the Moon'') shall notice a shift of about one millimeter to the left at the northern half of '''Eratosthenes''' (on the lower margin of chart 21). The southern half of '''Eratosthenes''' (on the upper margin of chart 32) shows a shift of about one millimeter to the right. If you want to make enlarged photocopies of all 76 charts (say: at 200 percent of the original prints) keep in mind that the shift at '''Eratosthenes''' will be <u>'''4'''</u> millimeters! (almost <u>'''half a centimeter'''</u>). Crater '''Manilius''' (on charts 23 and 34) shows the same phenomenon. <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>Jul 27, 2011</small></span>
 
* <u>'''WARNING'''</u>: Those who want to create a large assembled moonmap of Antonin Rukl's 76 small charts (of the moon's near side from his ''Atlas of the Moon'') shall notice a shift of about one millimeter to the left at the northern half of '''Eratosthenes''' (on the lower margin of chart 21). The southern half of '''Eratosthenes''' (on the upper margin of chart 32) shows a shift of about one millimeter to the right. If you want to make enlarged photocopies of all 76 charts (say: at 200 percent of the original prints) keep in mind that the shift at '''Eratosthenes''' will be <u>'''4'''</u> millimeters! (almost <u>'''half a centimeter'''</u>). Crater '''Manilius''' (on charts 23 and 34) shows the same phenomenon. <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>Jul 27, 2011</small></span>
 
* Cattermole reported the disappearance of the central mountains of '''Eratosthenes''' on 11th May 1954, although the surrounding detail remained clearly visible. Source: V.A.Firsoff's ''The Old Moon and the New'' (1969), page 183.<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>May 19, 2012</small></span>
 
* Cattermole reported the disappearance of the central mountains of '''Eratosthenes''' on 11th May 1954, although the surrounding detail remained clearly visible. Source: V.A.Firsoff's ''The Old Moon and the New'' (1969), page 183.<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>May 19, 2012</small></span>
Line 50: Line 50:
  
 
* Named for [http://en.wikipedia.org/wiki/Eratosthenes Eratosthenes] (276 BC - 194 BC), a Greek mathematician, geographer and astronomer. He is noted for devising a system of latitude and longitude, and for being the first known to have calculated the circumference of the Earth.
 
* Named for [http://en.wikipedia.org/wiki/Eratosthenes Eratosthenes] (276 BC - 194 BC), a Greek mathematician, geographer and astronomer. He is noted for devising a system of latitude and longitude, and for being the first known to have calculated the circumference of the Earth.
* This name has continued unchanged since its original usage for this feature on [http://the-moon.wikispaces.com/Riccioli Riccioli]'s map (''[http://the-moon.wikispaces.com/Whitaker Whitaker]'', p. 212).
+
* This name has continued unchanged since its original usage for this feature on [http://the-moon.us/wiki/Riccioli Riccioli]'s map (''[http://the-moon.us/wiki/Whitaker Whitaker]'', p. 212).
 
<br />  
 
<br />  
 
==LROC Articles==
 
==LROC Articles==
 
[http://lroc.sese.asu.edu/news/index.php?/archives/291-Eratosthenes-Crater-and-the-Lunar-Timescale.html Eratosthenes Crater and the Lunar Timescale]<br /> [http://lroc.sese.asu.edu/news/index.php?/archives/292-Terraces-in-Eratosthenes-Crater.html Terraces in Eratosthenes Crater]<br /> [http://lroc.sese.asu.edu/news/index.php?/archives/293-Eratosthenes-Central-Peak.html Eratosthenes Central Peak]<br /> <br />  
 
[http://lroc.sese.asu.edu/news/index.php?/archives/291-Eratosthenes-Crater-and-the-Lunar-Timescale.html Eratosthenes Crater and the Lunar Timescale]<br /> [http://lroc.sese.asu.edu/news/index.php?/archives/292-Terraces-in-Eratosthenes-Crater.html Terraces in Eratosthenes Crater]<br /> [http://lroc.sese.asu.edu/news/index.php?/archives/293-Eratosthenes-Central-Peak.html Eratosthenes Central Peak]<br /> <br />  
 
==LPOD Articles==
 
==LPOD Articles==
[http://www.lpod.org/?m=20060729 A Moth Lover's View of the Moon] [http://www.lpod.org/archive/LPOD-2005-02-27.htm One Crater’s Nomenclature] [http://www.lpod.org/?m=20060210 Geologic map] [http://www.lpod.org/archive/archive/2004/06/LPOD-2004-06-26.htm Albedo & rays] [http://www.lpod.org/?m=20070409 Secondary Matters] [http://www.lpod.org/archive/LPOD-2004-12-10.htm Overlooked Secondaries] [http://lpod.wikispaces.com/April%2010%2C%202009 A Bucket of Darkness] [http://lpod.wikispaces.com/April%206%2C%202010 Flat Out of Luck] [http://lpod.wikispaces.com/November%209%2C%202008 A Fence]<br /> <br />  
+
[http://www2.lpod.org/wiki/July_29,_2006 A Moth Lover's View of the Moon] [http://www2.lpod.org/wiki/February_27,_2005 One Crater’s Nomenclature] [http://www2.lpod.org/wiki/February_10,_2006 Geologic map] [http://www2.lpod.org/wiki/June_26,_2004 Albedo & rays] [http://www2.lpod.org/wiki/April_9,_2007 Secondary Matters] [http://www2.lpod.org/wiki/December_10,_2004 Overlooked Secondaries] [http://lpod.wikispaces.com/April%2010%2C%202009 A Bucket of Darkness] [http://lpod.wikispaces.com/April%206%2C%202010 Flat Out of Luck] [http://lpod.wikispaces.com/November%209%2C%202008 A Fence]<br /> <br />  
 
==Bibliography==
 
==Bibliography==
  
* Hill, Harold. 1991. ''[http://the-moon.wikispaces.com/A%20Portfolio%20of%20Lunar%20Drawings A Portfolio of Lunar Drawings]''. pages 48, 49, 50.
+
* Hill, Harold. 1991. ''[http://the-moon.us/wiki/A%20Portfolio%20of%20Lunar%20Drawings A Portfolio of Lunar Drawings]''. pages 48, 49, 50.
 
* Moore, P. 1955. [http://adsabs.harvard.edu/abs/1955IrAJ....3..133M Life on the Moon], ''Irish Astronomical Journal'' Vol 3 (5), pp. 134 - 135. ''(recounts W. H. Pickering's speculations about vegetation in '''Eratosthenes''')''
 
* Moore, P. 1955. [http://adsabs.harvard.edu/abs/1955IrAJ....3..133M Life on the Moon], ''Irish Astronomical Journal'' Vol 3 (5), pp. 134 - 135. ''(recounts W. H. Pickering's speculations about vegetation in '''Eratosthenes''')''
 
* Nicastro, N. 2008. ''[http://books.google.com/books?id=e_E3s_LJ800C Circumference: Eratosthenes and the Ancient Quest to Measure the Globe]'' - St. Martin's Press, ISBN-13: 978-0312372477 . ''(Good short book on little known early scientist who determined correct circumference of Earth and Earth-Sun distance.)''
 
* Nicastro, N. 2008. ''[http://books.google.com/books?id=e_E3s_LJ800C Circumference: Eratosthenes and the Ancient Quest to Measure the Globe]'' - St. Martin's Press, ISBN-13: 978-0312372477 . ''(Good short book on little known early scientist who determined correct circumference of Earth and Earth-Sun distance.)''

Revision as of 20:14, 11 April 2018

Eratosthenes

Lat: 14.5°N, Long: 11.3°W, Diam: 58 km, Depth: 3.43 km, Rükl: 21, Eratosthenian

Table of Contents

[#Eratosthenes Eratosthenes]
[#Eratosthenes-Images Images]
[#Eratosthenes-Maps Maps]
[#Eratosthenes-Description Description]
[#Eratosthenes-Description: Elger Description: Elger]
[#Eratosthenes-Description: Wikipedia Description: Wikipedia]
[#Eratosthenes-Additional Information Additional Information]
[#Eratosthenes-Nomenclature Nomenclature]
[#Eratosthenes-LROC Articles LROC Articles]
[#Eratosthenes-LPOD Articles LPOD Articles]
[#Eratosthenes-Bibliography Bibliography]
external image normal_eratosthenes_060807_04h07tu.jpg
François Emond

Images

LPOD Photo Gallery Lunar Orbiter Images Apollo Images
Eratosthenes itself:

  • Wes Higgins
  • Excellent Apollo 12 oblique view
  • Lunar Orbiter 5's Frames 134, 135, and 136 show near vertical close-up views of Eratosthenes and its central peak. Note the curious "twin domes" on Eratosthenes's floor! - DannyCaes DannyCaes Feb 4, 2014
  • The first 10 frames of Apollo 17's Magazine 158/ WW (35 mm Nikon) show a near-vertical view of Eratosthenes as it is seen in Earthlight. - DannyCaes DannyCaes Feb 4, 2014 See also: Additional Information, below.

The pair of bowl-shaped craters Eratosthenes A and B, south of Wallace:

  • This couple was captured near the left margin of Apollo 17's panoramic ITEK-camera frame AS17-P-3046.

The pair of bowl-shaped craters Eratosthenes D and E, north of Eratosthenes itself:

  • This couple was captured near the left margin of AS17-P-3047.
  • Additional research orbital Apollo 17 photography: Danny Caes


Maps

(LAC zone 58B2) LAC map Geologic map

IAU page: Eratosthenes

Description


Description: Elger

(IAU Directions) ERATOSTHENES.--A noble ring-plain, 38 miles in diameter; a worthy termination of the Apennines. The best view of it is obtained under morning illumination when the interior is about half-filled with shadow. At this phase the many irregular terraces on the inner slope of the W. wall (which rises at one peak 16,000 feet above an interior depressed 8,000 feet below the Mare Imbrium) are seen to the best advantage. The central mountain is made up of two principal peaks, nearly central, from which two bright curved hills extend nearly up to the N.E. wall,--the whole forming a V-shaped arrangement. On the S. there is a narrow break in the wall, and the S.E. section of it seems to overlap and extend some distance beyond the S.W. section. The border on the S.E. is remarkable for the great width of its glacis. Eratosthenes exhibits a marked departure from circularity, especially on the W., where the wall consists of two well-marked linear sections, with an intermediate portion where the crest for 20 miles or more bends inwards or towards the centre. From the S.W. flank of this formation extends towards the E. side of Stadius one of the grandest mountain arms on the moon's visible surface, rising at one place 9,000 feet, and in two others 5,000 and 3,000 feet respectively above the Mare Imbrium) . If this magnificent object is observed when the morning terminator falls a little W. of Stadius, it affords a spectacle not easily forgotten. I have often seen it at this phase when its broad mass of shadow extended across the well-known crater-row E. of Copernicus, some of the component craters appearing between the spires of shade representing the loftiest peaks on the mountain arm. There is a prominent little crater on the crest of the arm between two of the peaks, and another on the plain to the east.

Description: Wikipedia

Eratosthenes

Additional Information

  • Depth data from Kurt Fisher database
    • Pike, 1976: 3.43 km
    • Westfall, 2000: 3.43 km
    • Viscardy, 1985: 3.57 km
    • Cherrington, 1969: 3.74 km
  • West rim slope 47° (Pohn, 1963)
  • Central peak composition: A, GNTA1, GNTA2 & AGN (Tompkins & Pieters, 1999)
  • Sekiguchi provides a wonderful map with measured interior features. The tallest peak rises 1.2 km above the crater floor Sekiguchi, 1972. - fatastronomer fatastronomer
  • Moore et al, 1980 report a thermal anomaly feature at a dome near Eratosthenes A. Domes are unlikely to be young, nor to have steep slopes, so it is unusual that one would be a thermal cooling anomaly.
  • The type crater for the, Eratosthenian stratigraphic period in lunar history.
  • During the mission of Apollo 17 in december 1972, crater Eratosthenes was photographed in earthlight. This happened when CSM America was directly above Eratosthenes, when the lunar sunrise-terminator was still too eastward. These earthlight photographs are included in Apollo 17's Magazine 158-WW (35mm NIKON B&W photographs), see: Sheet 8 of A17's Index Maps. Some of those photographs were reproduced in the Apollo 17 Preliminary Science Report. - DannyCaes DannyCaes Dec 22, 2007
  • TSI = 35, CPI = 20, FI = 20; MI =75 Smith and Sanchez, 1973
  • WARNING: Those who want to create a large assembled moonmap of Antonin Rukl's 76 small charts (of the moon's near side from his Atlas of the Moon) shall notice a shift of about one millimeter to the left at the northern half of Eratosthenes (on the lower margin of chart 21). The southern half of Eratosthenes (on the upper margin of chart 32) shows a shift of about one millimeter to the right. If you want to make enlarged photocopies of all 76 charts (say: at 200 percent of the original prints) keep in mind that the shift at Eratosthenes will be 4 millimeters! (almost half a centimeter). Crater Manilius (on charts 23 and 34) shows the same phenomenon. - DannyCaes DannyCaes Jul 27, 2011
  • Cattermole reported the disappearance of the central mountains of Eratosthenes on 11th May 1954, although the surrounding detail remained clearly visible. Source: V.A.Firsoff's The Old Moon and the New (1969), page 183.- DannyCaes DannyCaes May 19, 2012


Nomenclature

  • Named for Eratosthenes (276 BC - 194 BC), a Greek mathematician, geographer and astronomer. He is noted for devising a system of latitude and longitude, and for being the first known to have calculated the circumference of the Earth.
  • This name has continued unchanged since its original usage for this feature on Riccioli's map (Whitaker, p. 212).


LROC Articles

Eratosthenes Crater and the Lunar Timescale
Terraces in Eratosthenes Crater
Eratosthenes Central Peak

LPOD Articles

A Moth Lover's View of the Moon One Crater’s Nomenclature Geologic map Albedo & rays Secondary Matters Overlooked Secondaries A Bucket of Darkness Flat Out of Luck A Fence

Bibliography




This page has been edited 1 times. The last modification was made by - tychocrater tychocrater on Jun 13, 2009 3:24 pm - afx2u2