Byrgius (crater)


Byrgius is a lunar impact crater located in the western part of the Moon, near the limb. As a result, Byrgius appears strongly oval in shape due to foreshortening. To the northwest is the nearly ruined crater Lamarck. The rim of Byrgius is worn and eroded, with Byrgius A overlying the eastern rim and Byrgius D lying across the northwest. The floor is relatively flat and undistinguished by significant craterlets. Byrgius A possesses its own ray system that extends for over 400 kilometres.

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 Byrgius.
ByrgiusLatitudeLongitudeDiameter
A24.5° S63.7° W19 km
B23.9° S60.8° W23 km
D24.1° S67.1° W27 km
E23.5° S66.2° W18 km
H23.7° S62.4° W27 km
K23.0° S61.8° W14 km
N22.3° S63.1° W20 km
P22.6° S64.1° W19 km
R26.5° S60.7° W7 km
S26.2° S61.4° W43 km
T25.1° S61.5° W5 km
U25.8° S67.2° W13 km
V26.0° S67.8° W9 km
W26.1° S68.5° W14 km
X25.7° S65.4° W6 km