Ross is a lunarimpact crater that is located in the northwest part of the Mare Tranquillitatis. It was named after James Clark Ross (British explorer) and Frank E. Ross (American astronomer and optician).[1] It lies south-southwest of the crater Plinius, and northeast of the lava-flooded Maclear.
This crater has a generally circular shape, but is not quite symmetrical. The inner walls slope down to a base of slumped material, before joining a relatively level interior floor. There is a low ridge to the west of the crater midpoint.
Ross crater and its satellite craters taken from Earth in 2012 at the University of Hertfordshire's Bayfordbury Observatory with the telescopes Meade LX200 14" and Lumenera Skynyx 2-1
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 Ross.
Oblique view facing south from Apollo 15Cross sections of Ross crater with different elevations of each direction.
Ross
Latitude
Longitude
Diameter
B
11.4° N
20.2° E
6 km
C
11.7° N
19.0° E
5 km
D
12.6° N
23.3° E
9 km
E
11.1° N
23.4° E
4 km
F
10.9° N
24.2° E
5 km
G
10.7° N
24.9° E
5 km
H
10.2° N
21.8° E
5 km
References
↑"Ross (lunar crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
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 Reviews12 (2): 136–186. doi:10.1007/BF00171763. Bibcode: 1971SSRv...12..136M.