Delambre is a lunar impact crater that lies to the southwest of Mare Tranquillitatis, in the central highland region. To the west is the crater pair of Theon Junior and Theon Senior, the latter being more distant and located to the northwest.
 Lunar Orbiter 4 image | |
| Coordinates | 1°54′S 17°30′E / 1.9°S 17.5°E |
|---|---|
| Diameter | 52 km |
| Depth | 3.5 km |
| Colongitude | 342° at sunrise |
| Eponym | Jean B. J. Delambre |
It is 52 kilometers in diameter and 3.5 kilometers in depth. It was named for Jean Baptiste Joseph Delambre, an 18th-century French astronomer.[1][2]
The rim of Delambre has a terraced interior, with a tiny craterlet lying along the northern rim. In the south is a low cut forming a slight notch. The crater interior has an irregular surface. It has high walls, with some peaks reaching 15,000 feet. Delambre was photographed by the uncrewed probe Ranger 8 on its descent towards Mare Tranquillitatis. Delambre is from the Upper Imbrian epoch, which lasted from 3.8 to 3.2 billion years ago.[2][3]
Satellite craters edit
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Delambre.[4]
| Delambre | Latitude | Longitude | Diameter |
|---|---|---|---|
| B | 1.7° S | 19.6° E | 10 km |
| D | 1.1° S | 17.6° E | 5 km |
| F | 1.0° S | 19.3° E | 5 km |
| H | 1.0° S | 16.4° E | 16 km |
| J | 0.3° S | 16.8° E | 12 km |
References edit
- ^ "Delambre (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
- ^ a b Autostar Suite Astronomer Edition. CD-ROM. Meade, April 2006.
- ^ Moore, Patrick (2001). On the Moon. Sterling Publishing Co.. ISBN 0-304-35469-4.
- ^ Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 0-521-81528-2.
External links edit
- Delambre at The Moon Wiki
- Wood, Chuck (January 25, 2006). "Subtle Lineations". Lunar Photo of the Day. Archived from the original on June 14, 2011.
- Wood, Chuck (December 12, 2006). "How Deep is That Hole". Lunar Photo of the Day. Archived from the original on June 14, 2011. - includes a couple of craters such as Delambre
- Wood, Chuck (December 19, 2006). "A Gray Day". Lunar Photo of the Day. Archived from the original on June 14, 2011.