Epigenes (crater)
 Lunar Orbiter 4 image | |
| Coordinates | 67°30′N 4°36′W / 67.5°N 4.6°W |
|---|---|
| Diameter | 55 km |
| Depth | 2.0 km |
| Colongitude | 7° at sunrise |
| Eponym | Epigenes of Byzantium |
Epigenes is a lunar impact crater that is located in the north part of the Moon, and is sufficiently close to the northern limb to appear significantly foreshortened from the Earth. It lies just to the northwest of the remains of the walled plain W. Bond. Due north of Epigenes is Goldschmidt, and the ruined crater Birmingham lies just to the southwest.
This formation is a picture in contrasts. The north and northwest parts of the rim are well-formed with little appearance of wear, while the remainder of the rim is notably eroded, particularly in the east-southeastern half. The western half of the interior floor is smooth and nearly featureless, while the remainder is somewhat hummocky and appears covered in ejecta from the east. The small crater Epigenes B intrudes into the northeastern rim.
Epigenes is a crater of Nectarian age.[1]
Satellite craters
[edit]By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Epigenes.
| Epigenes | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 66.9° N | 0.3° W | 18 km |
| B | 68.3° N | 3.1° W | 11 km |
| D | 68.3° N | 0.3° E | 10 km |
| F | 67.1° N | 8.1° W | 5 km |
| G | 68.9° N | 7.0° W | 5 km |
| H | 69.4° N | 6.4° W | 7 km |
| P | 65.4° N | 5.4° W | 33 km |
References
[edit]- ^ The geologic history of the Moon. USGS Professional Paper 1348. By Don E. Wilhelms, John F. McCauley, and Newell J. Trask. U.S. Government Printing Office, Washington: 1987. Table 9-4.
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- Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. Retrieved 2007-08-05.
- Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
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- Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.
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- Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.
- Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3.
- Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.
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