Opelt (crater)
| Coordinates | 16°18′S 17°30′W / 16.3°S 17.5°WCoordinates: 16°18′S 17°30′W / 16.3°S 17.5°W |
|---|---|
| Diameter | 48 km |
| Depth | Unknown |
| Colongitude | 17° at sunrise |
| Eponym | Friedrich W. Opelt |
Opelt is the lava-flooded remnant of a lunar crater on the Mare Nubium. It lies to the north of a similar formation named Gould, and to the northeast of the prominent Bullialdus.
Only a slightly raised outline remains of Opelt's rim, the interior having been inundated with lava. The rim has a wide break at the northern end and several smaller breaks to the south and southeast. The satellite craterlet Opelt E lies at the southern end of the surviving western rim. The interior floor is nearly level, with the exception of a slight rise to the southwest.
To the north of Opelt on the lunar mare is a sinuous system of rilles designated Rimae Opelt. These occupy a diameter of about 70 kilometers.
[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 Opelt.
| Opelt | Latitude | Longitude | Diameter |
|---|---|---|---|
| E | 17.0° S | 17.8° W | 8 km |
| F | 18.1° S | 18.7° W | 4 km |
| G | 16.8° S | 17.2° W | 4 km |
| H | 15.8° S | 17.3° W | 3 km |
| K | 13.6° S | 17.1° W | 5 km |
[edit] References
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