Jansen (crater)
Jansen is lunar crater in the north part of the Mare Tranquillitatis. It is located to the east-southeast of the crater Plinius. The rim of Jansen is low and narrow, with a notch along the western edge. The interior is relatively level, which may indicate it has been covered by lava. To the south-southwest a small but prominent crater lies on the crater floor, halfway between the center and the rim.
To the northwest of the rim is a rille named Rima Jansen, and to the east are wrinkle ridges in the mare surface. A low ridge runs from near the southeast rim in a southeasterly direction.
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 Jansen.
| Jansen |
Latitude |
Longitude |
Diameter |
| D |
15.7° N |
28.4° E |
7 km |
| E |
14.5° N |
27.8° E |
7 km |
| G |
9.3° N |
26.0° E |
6 km |
| H |
11.4° N |
28.4° E |
7 km |
| K |
11.5° N |
29.7° E |
6 km |
| L |
14.7° N |
30.1° E |
7 km |
| R |
15.2° N |
28.8° E |
25 km |
| T |
11.4° N |
33.5° E |
5 km |
| U |
11.9° N |
32.3° E |
4 km |
| W |
10.2° N |
29.5° E |
3 km |
| Y |
13.4° N |
28.6° E |
4 km |
The following craters have been renamed by the IAU.
References
- Andersson, L. E.; Whitaker, E. A., (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
- Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. http://planetarynames.wr.usgs.gov/. Retrieved 2007-08-05.
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- McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. http://host.planet4589.org/astro/lunar/. Retrieved 2007-10-24.
- Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews 12 (2): 136–186. Bibcode 1971SSRv...12..136M. doi:10.1007/BF00171763. edit
- Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 0-304-35469-4.
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- Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 1-85233-193-3.