Difference between revisions of "Cepheus"
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Lat: 40.8°N, Long: 45.8°E, Diam: 39 km, Depth: 4.59 km, [[R%C3%BCkl%2015|Rükl: 15]], [[Stratigraphy|Eratosthenian]]<br /> | Lat: 40.8°N, Long: 45.8°E, Diam: 39 km, Depth: 4.59 km, [[R%C3%BCkl%2015|Rükl: 15]], [[Stratigraphy|Eratosthenian]]<br /> | ||
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| − | [http://www.lpod.org/coppermine/albums/userpics/normal_Cepheus_LO-IV-074H_LTVT.JPG [[Image: | + | [http://www.lpod.org/coppermine/albums/userpics/normal_Cepheus_LO-IV-074H_LTVT.JPG [[Image:Normal_Cepheus_LO-IV-074H_LTVT.JPG|external image normal_Cepheus_LO-IV-074H_LTVT.JPG]]][[Image:Cepheus_2006_04_16-Peach.jpg|external image Cepheus_2006_04_16-Peach.jpg]]<br /> '''Left''': ''[http://lpod.org/coppermine/displayimage.php?pos=-3034 LO-IV-074H]'' Overhead view from [[Lunar%20Orbiter|Lunar Orbiter]]. The 13-km diameter circular crater on '''Cepheus'''' northeast rim is '''Cepheus A'''. In addition to its central peaks, '''Cepheus''' appears to have a 5-km diameter depression (a relatively fresh impact crater?) at its center.<br /> '''Right''': ''[http://lpod.org/coppermine/displayimage.php?pos=-1547 Damian Peach, April 16, 2006]'' An Earth-based view showing a small peak to the northeast of '''Cepheus'''' center. This appears to be at the end of a ridge, common to the two photos and just north of the feature casting the strong westward shadow in the Lunar Orbiter view.<br /> <div id="toc"> |
==Images== | ==Images== | ||
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<br /> | <br /> | ||
==Description: Elger== | ==Description: Elger== | ||
| − | ''([[IAU% | + | ''([[IAU%20directions|IAU Directions]])'' CEPHEUS.--A peculiarly shaped ring-plain, 27 miles in diameter. The W. border is nearly rectilineal, while on the E., the wall forms a bold curve. There is a very brilliant crater on the summit of this section, and a central mountain on the floor. The E. wall is much terraced. E. of Cepheus, close to the brilliant crater, there is a cleft or narrow valley running N. towards [[Oersted|Oersted]].<br /> <br /> |
==Description: Wikipedia== | ==Description: Wikipedia== | ||
[http://en.wikipedia.org/wiki/Cepheus_(crater) Cepheus]<br /> <br /> | [http://en.wikipedia.org/wiki/Cepheus_(crater) Cepheus]<br /> <br /> | ||
==Additional Information== | ==Additional Information== | ||
| − | * Depth data from [[Kurt%20Fisher% | + | * Depth data from [[Kurt%20Fisher%20Crater%20Depths|Kurt Fisher database]] |
** Westfall, 2000: 4.59 km | ** Westfall, 2000: 4.59 km | ||
* From the shadows in [http://www.lpi.usra.edu/resources/lunarorbiter/frame/?4067 LO-IV-067H] and [http://www.lpi.usra.edu/resources/lunarorbiter/frame/?4074 LO-IV-074H], '''Cepheus A''' is 2710-2780 m deep. The shadow cast by the feature to the east of '''Cepheus'''' center spans a height range of a little over 800 m. This appears to be cast by a very low hill into the pit of a relatively fresh central crater; but the observed effect might conceivably be created by an arrangement of central peaks with irregular slopes. <span class="membersnap">- Jim Mosher</span> | * From the shadows in [http://www.lpi.usra.edu/resources/lunarorbiter/frame/?4067 LO-IV-067H] and [http://www.lpi.usra.edu/resources/lunarorbiter/frame/?4074 LO-IV-074H], '''Cepheus A''' is 2710-2780 m deep. The shadow cast by the feature to the east of '''Cepheus'''' center spans a height range of a little over 800 m. This appears to be cast by a very low hill into the pit of a relatively fresh central crater; but the observed effect might conceivably be created by an arrangement of central peaks with irregular slopes. <span class="membersnap">- Jim Mosher</span> | ||
Latest revision as of 01:44, 16 April 2018
Contents
Cepheus
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Lat: 40.8°N, Long: 45.8°E, Diam: 39 km, Depth: 4.59 km, Rükl: 15, Eratosthenian |
Left: LO-IV-074H Overhead view from Lunar Orbiter. The 13-km diameter circular crater on Cepheus' northeast rim is Cepheus A. In addition to its central peaks, Cepheus appears to have a 5-km diameter depression (a relatively fresh impact crater?) at its center.
Right: Damian Peach, April 16, 2006 An Earth-based view showing a small peak to the northeast of Cepheus' center. This appears to be at the end of a ridge, common to the two photos and just north of the feature casting the strong westward shadow in the Lunar Orbiter view.
Images
LPOD Photo Gallery Lunar Orbiter Images Apollo Images
- Lunar orbiter stereo view
Maps
(LAC zone 27A3) LAC map Geologic map
Description
Description: Elger
(IAU Directions) CEPHEUS.--A peculiarly shaped ring-plain, 27 miles in diameter. The W. border is nearly rectilineal, while on the E., the wall forms a bold curve. There is a very brilliant crater on the summit of this section, and a central mountain on the floor. The E. wall is much terraced. E. of Cepheus, close to the brilliant crater, there is a cleft or narrow valley running N. towards Oersted.
Description: Wikipedia
Additional Information
- Depth data from Kurt Fisher database
- Westfall, 2000: 4.59 km
- From the shadows in LO-IV-067H and LO-IV-074H, Cepheus A is 2710-2780 m deep. The shadow cast by the feature to the east of Cepheus' center spans a height range of a little over 800 m. This appears to be cast by a very low hill into the pit of a relatively fresh central crater; but the observed effect might conceivably be created by an arrangement of central peaks with irregular slopes. - Jim Mosher
- Satellite crater Cepheus A is on both the ALPO list of bright ray craters and the ALPO list of banded craters
- TSI = 30, CPI = 15, FI = 20; MI =65 Smith and Sanchez, 1973
Nomenclature
- Named for Cepheus, a Greek mythological astronomer, ruler of the Phoenician nation of Aethiopia and the father of Andromeda.
- According to Whitaker (p. 211), the name Cepheus was introduced on Riccioli's map (from which much of the original IAU nomenclature derives), however the feature so-designated was what we now call Franklin. The present crater was not named on Riccioli's map.
- Johann Schröter (in his Plate VII) labeled Franklin as Cepheus austral. and called the present crater Cepheus boreal..
- By the time Mary Blagg's Collated List was issued (1913) all three of her authorities used the names Cepheus and Cepheus A with their modern meanings.
- The names Cepheus and Hercules are the only two in the gazetteer of official lunar nomenclature which are also the names of constellations in the celestial northern hemisphere.- DannyCaes Apr 25, 2010
Cepheus E or Cepheus Epsilon?
- SLC-B2 shows some sort of mountain or hill about halfway between Cepheus and Maury. It is labeled "E" with and arrow pointing toward Cepheus. The ACT-REACT Quick Map of the LROC site doesn't show an "E" at that location, or... should it be Epsilon? (Cepheus Epsilon?). - DannyCaes Feb 12, 2017
- Chart 21 in the Times Atlas of the Moon shows, at that location, a rather large non-circle shaped region called Cepheus E.
LPOD Articles
Bibliography
