Abenezra (crater)

Abenezra
Lunar Orbiter 4 image of the craters Abenezra (upper left) and Azophi (lower right)
Coordinates21°00′S 11°54′E / 21.0°S 11.9°E / -21.0; 11.9
Diameter42 km
Depth3.7 km
Colongitude349° at sunrise
EponymAbraham ibn Ezra
Oblique photo of Abenezra (right) and Azophi (left) from Apollo 14

Abenezra is a lunar impact crater located in the rugged highlands in the south-central section of the Moon. It is attached along the southeast rim to the crater Azophi. To the northeast lies the crater Geber, and further to the southeast is the larger Sacrobosco.

The rim of Abenezra has a noticeably polygonal shape, with uneven wall segments. The inner walls are terraced, and the floor is irregular and ridged. These ridges form unusual, sinuous patterns across the floor. The crater overlays the eastern part of another crater-like formation designated Abenezra C.

Abenezra is named after the Sephardic Jewish sage, poet, biblical commentator, and astronomer Abraham ibn Ezra.[1] His name was added to the lunar nomenclature by Giovanni Battista Riccioli in 1651.[2] It was formally adopted by the International Astronomical Union in 1935.[1]

Satellite craters

Abenezra 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

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

Abenezra[3] Latitude Longitude Diameter
A 22.8° S 10.5° E 23 km
B 20.8° S 10.1° E 14 km
C 21.3° S 11.1° E 44 km
D 21.7° S 9.7° E 8 km
E 21.4° S 9.4° E 14 km
F 21.5° S 10.3° E 7 km
G 20.5° S 11.0° E 5 km
H 21.1° S 12.8° E 4 km
J 19.9° S 10.7° E 5 km
P 19.9° S 9.9° E 44 km

References

  1. ^ a b "Abenezra". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. ^ Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. pp. 60–66, 210. ISBN 978-0-521-62248-6.
  3. ^ Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. p. 291. ISBN 978-0-521-81528-4.