Werner (crater)
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| Crater characteristics | |
| Coordinates | 28.0° S, 3.3° E |
|---|---|
| Diameter | 70 km |
| Depth | 4.2 km |
| Colongitude | 357° at sunrise |
| Eponym | Johannes Werner |
Werner is a prominent lunar impact crater that lies in the rugged south-central highlands of the Moon. It is almost joined with Aliacensis crater to the southeast, and the pair form a rugged valley in the intervening gap. Due west of Werner is the distorted Regiomontanus crater, and to the north is the remains of the Blanchinus crater. It is from the Eratosthenian period, which lasted from 3.2 to 1.1 billion years ago. The crater is named for 15th century German mathematician and astronomer Johannes Werner.[1]
The rim of Werner crater shows little appearance of wear, and is much younger and less eroded that the other large craters in the surroundings. The interior wall is terraced, and there is a noticeable rampart on the exterior. There are several low rises on the crater floor and a notable central peak. Its highly terraced walls attain peaks of almost 1,500 feet. The crater is 45 miles (70 kilometers) in diameter, and the difference in height between its rim and its deepest parts is 4.2 kilometers.[1][2]
[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 Werner crater.[3]
| Werner | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 27.2° S | 1.1° E | 15 km |
| B | 26.2° S | 0.7° E | 13 km |
| D | 27.1° S | 3.2° E | 2 km |
| E | 27.4° S | 0.8° E | 7 km |
| F | 25.8° S | 0.8° E | 10 km |
| G | 27.6° S | 1.3° E | 9 km |
| H | 26.6° S | 1.5° E | 16 km |
[edit] References
- ^ 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.
