Schickard (crater)

Schickard is a lunar impact crater of the form called a walled plain. It lies in the southwest sector of the Moon, near the lunar limb. As a result, the crater appears oblong due to foreshortening. Attached to the northern rim is the lesser crater Lehmann, and to the northeast is the even smaller Drebbel. Southwest of Schickard is Wargentin, a lava-flooded plateau.

Schickard

Lunar Orbiter 4 image
Coordinates	44.4°S 55.1°W / -44.4; -55.1
Diameter	212 km
Depth	1.5 km
Colongitude	55° at sunrise
Eponym	Wilhelm Schickard

Selenochromatic Image(Si) of the crater area

Earth-based view with Schickard in upper left. Nasmyth, Phocylides, and Wargentin are at right.

Schickard has a worn rim that is overlain in several locations by smaller impact craters. The most prominent of these is the irregular Schickard E across the southeastern rim. The floor of Schickard has been partially flooded by lava, leaving only the southwest portion uncovered and rough-textured.

Schickard's floor is marked with a triangular band of lighter-albedo material, leaving relatively darker patches in the north and southeast. This feature is more prominent when the Sun is at a relatively high angle. There are also multiple small crater impacts on the floor, most notably in the southwest.

Satellite craters

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Schickard.

Schickard	Coordinates	Diameter, km
A	46.87°S 53.71°W / -46.87; -53.71 (Schickard A)	14
B	43.74°S 52.25°W / -43.74; -52.25 (Schickard B)	14
C	45.86°S 56.00°W / -45.86; -56.00 (Schickard C)	13
D	45.77°S 57.72°W / -45.77; -57.72 (Schickard D)	9
E	47.28°S 51.67°W / -47.28; -51.67 (Schickard E)	33
F	48.00°S 53.86°W / -48.00; -53.86 (Schickard F)	14
G	43.04°S 58.98°W / -43.04; -58.98 (Schickard G)	12
H	43.52°S 62.34°W / -43.52; -62.34 (Schickard H)	16
J	45.01°S 62.44°W / -45.01; -62.44 (Schickard J)	13
K	43.86°S 63.90°W / -43.86; -63.90 (Schickard K)	14
L	44.12°S 59.80°W / -44.12; -59.80 (Schickard L)	9
M	44.19°S 58.98°W / -44.19; -58.98 (Schickard M)	9
N	41.30°S 54.69°W / -41.30; -54.69 (Schickard N)	7
P	42.91°S 48.50°W / -42.91; -48.50 (Schickard P)	94
Q	42.74°S 53.05°W / -42.74; -53.05 (Schickard Q)	6
R	44.13°S 53.82°W / -44.13; -53.82 (Schickard R)	5
S	46.66°S 56.80°W / -46.66; -56.80 (Schickard S)	16
T	44.81°S 50.37°W / -44.81; -50.37 (Schickard T)	5
W	45.12°S 58.19°W / -45.12; -58.19 (Schickard W)	8
X	43.55°S 51.26°W / -43.55; -51.26 (Schickard X)	8
Y	47.44°S 57.60°W / -47.44; -57.60 (Schickard Y)	5

External links

• LAC-110, lunar chart from Gazetteer of Planetary Nomenclature

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. Retrieved 2019-09-29.
• Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
• Cocks, Elijah E.; Cocks, Josiah C. (1995). Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature. Tudor Publishers. ISBN 978-0-936389-27-1.
• McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. 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. S2CID 122125855.
• Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.
• Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.
• Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.
• Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3.
• Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.
• Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.