Proctor (lunar crater)
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| Crater characteristics | |
| Coordinates | 46.4° S, 5.1° W |
|---|---|
| Diameter | 52 km |
| Depth | 1.3 km |
| Colongitude | 6° at sunrise |
| Eponym | Mary Proctor |
Proctor is the remnant of a lunar crater that is located to the southeast of the prominent Tycho crater. It lies just to the north of the huge Maginus walled plain. To the north is Saussure crater and to the northwest, just to the east of Tycho, lies Pictet crater. It is 52 kilometers in diameter and its walls are 1,300 meters high. It is from the Pre-Imbrian period, which lasted from 4.55 to 3.85 billion years ago.[1][2]
The outer rim of this crater has become heavily worn and eroded, and now forms a low, irregular rise around the interior floor. Much of the northwestern half of the rim is marked by a number of small craters, including 'Proctor D'. The interior floor is somewhat level and is marked only by a few tiny impacts.[3]
The crater is named after 20th century American astronomer Mary Proctor.[1]
[edit] Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Proctor crater.[4]
| Proctor | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 47.0° S | 6.7° W | 8 km |
| B | 46.4° S | 6.7° W | 8 km |
| C | 47.7° S | 6.6° W | 5 km |
| D | 46.1° S | 6.0° W | 12 km |
| E | 45.4° S | 5.1° W | 8 km |
| F | 47.7° S | 5.2° W | 7 km |
| G | 47.7° S | 4.8° W | 7 km |
| H | 45.7° S | 2.5° W | 5 km |
[edit] References
- ^ a b Autostar Suite Astronomer Edition. CD-ROM. Meade, April 2006.
- ^ IDENTIKIT. luna.e-cremona.it. Retrieved on October 25, 2007.
- ^ Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 0-913135-17-8.
- ^ Bussey, B.; Spudis, P., (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 0-521-81528-2.
