Jansen (crater)

Jansen is lunar crater in the north part of the Mare Tranquillitatis. It is located to the east-southeast of Plinius crater. 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 crater.

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.

• Jansen B — See Carrel crater.
• Jansen C — See Beketov crater.
• Jansen F — See Cajal crater.

References

• Wood, Chuck Stereo Jansen. Lunar Photo of the Day. Retrieved on 2007-01-15..