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Thebit (crater)
Encyclopedia
Thebit is a lunar impact crater
located on the southeast shore of Mare Nubium
. To the north-northwest is the crater Arzachel
, and Purbach
lies to the south-southwest. To the southwest is the flooded remnants of Thebit P, which is actually larger in diameter than Thebit itself.
The rim of Thebit is generally circular in outline, with a double-notch in the southwest wall. A prominent bowl-shaped crater, Thebit A, lies across the west-northwestern rim. The west-northwestern rim of this crater is overlain in turn by the even smaller Thebit L. Together this forms an elegant arrangement that makes Thebit relatively simple to identify. The floor of Thebit crater is rough and has no central peak. The rim displays a terrace, and has a hilly outer rampart.
Due west of Thebit is a 110-kilometer-long ridge named Rupes Recta
, which rises to 240 meters. This linear feature runs north-northwest to south-southeast across the Mare Nubium
.
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 on the southeast shore of Mare Nubium
Mare Nubium
Mare Nubium is a lunar mare in the Nubium basin on the Moon's near side. The mare is located just to the southeast of Oceanus Procellarum. The actual basin is believed to be of Pre-Nectarian system, with the surrounding basin material being of the Lower Imbrian epoch. The mare material is of the...
. To the north-northwest is the crater Arzachel
Arzachel (crater)
Arzachel is a relatively young lunar impact crater located in the highlands in the south-central part of the visible Moon, close to the zero meridian . It lies to the south of the crater Alphonsus, and together with Ptolemaeus further north the three form a prominent line of craters to the east of...
, and Purbach
Purbach (crater)
Purbach is a large lunar crater located in the rugged southern highlands of the Moon. The distorted crater Regiomontanus is attached to the southern rim. To the northwest is Thebit and just to the northeast lies La Caille....
lies to the south-southwest. To the southwest is the flooded remnants of Thebit P, which is actually larger in diameter than Thebit itself.
The rim of Thebit is generally circular in outline, with a double-notch in the southwest wall. A prominent bowl-shaped crater, Thebit A, lies across the west-northwestern rim. The west-northwestern rim of this crater is overlain in turn by the even smaller Thebit L. Together this forms an elegant arrangement that makes Thebit relatively simple to identify. The floor of Thebit crater is rough and has no central peak. The rim displays a terrace, and has a hilly outer rampart.
Due west of Thebit is a 110-kilometer-long ridge named Rupes Recta
Rupes Recta
Rupes Recta is a linear fault, or rille, on the Moon, in the southeastern part of the Mare Nubium at . The name is Latin for "Straight Fault", although it is more commonly called the Straight Wall...
, which rises to 240 meters. This linear feature runs north-northwest to south-southeast across the Mare Nubium
Mare Nubium
Mare Nubium is a lunar mare in the Nubium basin on the Moon's near side. The mare is located just to the southeast of Oceanus Procellarum. The actual basin is believed to be of Pre-Nectarian system, with the surrounding basin material being of the Lower Imbrian epoch. The mare material is of the...
.
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 Thebit.| Thebit | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 21.5° S | 4.9° W | 20 km |
| B | 22.3° S | 6.2° W | 4 km |
| C | 21.2° S | 4.1° W | 6 km |
| D | 19.8° S | 8.3° W | 5 km |
| E | 23.1° S | 4.6° W | 7 km |
| F | 23.0° S | 5.3° W | 4 km |
| J | 22.5° S | 5.5° W | 10 km |
| K | 23.1° S | 3.7° W | 5 km |
| L | 21.5° S | 5.4° W | 12 km |
| P | 24.0° S | 5.7° W | 78 km |
| Q | 20.1° S | 4.2° W | 16 km |
| R | 20.2° S | 4.8° W | 9 km |
| S | 24.8° S | 7.2° W | 16 km |
| T | 20.7° S | 6.0° W | 3 km |
| U | 20.3° S | 5.8° W | 4 km |