Cleomedes (crater)
Encyclopedia
Cleomedes is a prominent lunar
crater
located in the northeast part of the visible Moon
, to the north of Mare Crisium
. It is surrounded by rough ground with multiple crater impacts. The irregular crater Tralles
intrudes into the northwest rim. To the east is Delmotte
. North of Cleomedes is a triple-crater formation with Burckhardt
occupying the center.
The outer wall of Cleomedes is heavily worn and eroded, especially along the southern part of the wall. Cleomedes C lies across the south-southwest rim. The crater floor is nearly flat, with a small central peak to the north of the mid-point, forming a linear ridge toward the north-northeast. There are several notable craterlets on the floor, including a pair of overlapping craters just inside the northwest rim.
A rille
named Rima Cleomedes crosses the northern floor, running southeast from the northwest rim. This rille branches in a fork after crossing the crater mid-line. Smaller clefts lie in the southeast part of the floor.
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
crater
Impact crater
In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...
located in the northeast part of the visible Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
, to the north of Mare Crisium
Mare Crisium
Mare Crisium is a lunar mare located in the Moon's Crisium basin, just northeast of Mare Tranquillitatis. This basin is of the Pre-Imbrian period, 4.55 to 3.85 billion years ago. This mare is in diameter, and 176,000 km2 in area. It has a very flat floor, with a ring of wrinkled ridges...
. It is surrounded by rough ground with multiple crater impacts. The irregular crater Tralles
Tralles (crater)
Tralles is an irregular lunar crater that is attached to the northwestern rim of the much larger crater Cleomedes, in the northeastern part of the Moon. Within one crater diameter to the northwest is Debes....
intrudes into the northwest rim. To the east is Delmotte
Delmotte (crater)
Delmotte is a small lunar crater that lies just to the east of the much larger crater Cleomedes, and to the north of the Mare Crisium, in the northeastern part of the Moon...
. North of Cleomedes is a triple-crater formation with Burckhardt
Burckhardt (crater)
Burckhardt is a lunar impact crater that is located in the northeast part of the Moon. It lies between the craters Geminus just to the north and Cleomedes to the south....
occupying the center.
The outer wall of Cleomedes is heavily worn and eroded, especially along the southern part of the wall. Cleomedes C lies across the south-southwest rim. The crater floor is nearly flat, with a small central peak to the north of the mid-point, forming a linear ridge toward the north-northeast. There are several notable craterlets on the floor, including a pair of overlapping craters just inside the northwest rim.
A rille
Rille
Rille is typically used to describe any of the long, narrow depressions in the lunar surface that resemble channels. Typically a rille can be up to several kilometers wide and hundreds of kilometers in length...
named Rima Cleomedes crosses the northern floor, running southeast from the northwest rim. This rille branches in a fork after crossing the crater mid-line. Smaller clefts lie in the southeast part of the floor.
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 Cleomedes.| Cleomedes | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 28.9° N | 55.0° E | 12 km |
| B | 27.2° N | 55.9° E | 11 km |
| C | 25.7° N | 54.9° E | 14 km |
| D | 29.3° N | 61.9° E | 25 km |
| E | 28.6° N | 54.4° E | 21 km |
| F | 22.6° N | 56.9° E | 12 km |
| G | 24.0° N | 57.3° E | 20 km |
| H | 22.4° N | 57.6° E | 6 km |
| J | 26.9° N | 56.8° E | 10 km |
| L | 23.8° N | 54.4° E | 7 km |
| M | 24.2° N | 51.6° E | 6 km |
| N | 24.8° N | 52.5° E | 6 km |
| P | 24.8° N | 56.4° E | 9 km |
| Q | 24.9° N | 56.9° E | 4 km |
| R | 29.5° N | 60.2° E | 15 km |
| S | 29.5° N | 59.0° E | 8 km |
| T | 25.8° N | 57.7° E | 11 km |