Ptolemaeus
Lunar Feature
Feature Parameters
- Type:
- Lunar Position:
- Longitude: 0° W
- Latitude: 0° S
- Quadrant:
- Region:
No description available...
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Observations
| ID | Description |
|---|---|
| 872 | Looking over the lunar landscape - March 12, 2003 01:55 UT Colongitude: 15°.9, Sunrise Terminator: 164°.1 E In 20x70 binoculars, Ptolemaeus appears as a large, round, steep-walled crater with a flat, undisturbed floor. Ptolemaeus is the largest and northernmost crater of a three crater chain including the craters Alphonsus and Arzachel. |
| 346 | Looking over the lunar landscape - February 21, 2002 02:01 UT In the 114mm reflector at 121x with the 7.5mm eyepiece, Ptolemaeus appears as a large crater (listed as 153 km) with a not well defined crater edge. The floor of the crater is smooth with some subtle color variations. There is a very noticeable, large craterlet on the northeastern side of the crater floor. Ptolemaeus is a member of a trio of craters with Alphonsus and Arzachel to the south. |
