Apollonius (crater)


Apollonius is a lunar impact crater located near the eastern limb of the Moon. It lies in the region of uplands to the west of Mare Undarum and northeast of the Sinus Successus on the Mare Fecunditatis. It was named after Greek mathematician Apollonius of Perga. It is southwest of the crater Firmicus, and north of Condon.
The outer rim of Apollonius is somewhat worn and is overlain by a pair of small craters across the western wall. The nearly flat interior floor has a low albedo and has been covered by lava. It lacks a central peak or notable small craters across the bottom.

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 Apollonius.
ApolloniusLatitudeLongitudeDiameter
A4. N56.8° E24 km
B5.7° N57.6° E32 km
E4.4° N61. E16 km
F5.6° N60. E16 km
H3.4° N59.6° E20 km
J4.6° N57.5° E12 km
L6.5° N54.6° E9 km
M4.8° N61.9° E10 km
N4.8° N64.1° E9 km
S1.1° N62.6° E15 km
U4.9° N59.9° E7 km
V4.4° N58.2° E16 km
X7.0° N58.1° E31 km
Y4.9° N62.6° E10 km

The following craters have been renamed by the IAU.