Spencer Jones (crater)

Spencer Jones
LRO mosaic
Coordinates13°18′N 165°36′E / 13.3°N 165.6°E / 13.3; 165.6
Diameter156 km
DepthUnknown
Colongitude195° at sunrise
EponymHarold Spencer Jones
Apollo 16 image
Oblique view also from Apollo 16

Spencer Jones is a lunar impact crater on the Moon's far side.[1] The crater lies at the southwest margin of the Freundlich-Sharonov Basin. Just over 20 km from Spencer Jones is the slightly smaller crater Papaleksi to the south-southwest. To the northeast lies Anderson.

This is a roughly circular feature with a rim edge that is only moderately eroded. The northwest inner wall of Spencer Jones is wider than elsewhere. The interior floor is relatively level with a low ridge offset to the south of the midpoint. The infrared spectrum of pure crystalline plagioclase has been identified on the crater floor and central peak.[2] Attached to the southwestern outer rim is the small satellite crater Spencer Jones Q.

This crater is named after British astronomer Harold Spencer Jones (1890–1960).

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 Spencer Jones.

Spencer
Jones
Latitude Longitude Diameter
H 12.1° N 167.9° E 17 km
J 9.7° N 168.0° E 12 km
K 10.4° N 167.0° E 29 km
Q 12.0° N 164.4° E 17 km
W 15.2° N 163.3° E 50 km

References

  1. ↑ Moore, Patrick (2000). The Data Book of Astronomy. CRC Press. p. 71. ISBN 978-1-4200-3344-1.
  2. ↑ Donaldson Hanna, K. L.; et al. (July 2014). "Global assessment of pure crystalline plagioclase across the Moon and implications for the evolution of the primary crust". Journal of Geophysical Research: Planets. 119 (7): 1516–1545. Bibcode:2014JGRE..119.1516D. doi:10.1002/2013JE004476.

Sources