Agrippa (crater)

Agrippa is a lunar impact crater that is located at the southeast edge of the Mare Vaporum. It is located to the north of the crater Godin, the irregular Tempel lies just to the east. To the north and northeast, the rille designated Rima Ariadaeus follows a course to the east-southeast, reaching the western edge of Mare Tranquillitatis. It is named after the 1st century Greek astronomer Agrippa.[1]

Agrippa
Lunar Orbiter 4 image
Coordinates4.1°N 10.5°E / 4.1; 10.5
Diameter44 km (27 mi)
Depth3.1 km (1.9 mi)
Colongitude350° at sunrise
EponymAgrippa

The rim of Agrippa has an unusual shape, resembling the form of a shield with a rounded southern rim and a more angular northern half. The interior is somewhat irregular, with a central rise at the midpoint.[2] The crater is from the Eratosthenian period, which lasted from 3.2 to 1.1 billion years ago.[3]

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 Agrippa.[4] Agrippa B is to the north, Agrippa D and G are further west, Agrippa E is nearly northwest which is attached to another satellite crater Agrippa S, Agrippa F is not far to the east and Agrippa H is north-northeast touching the main crater.

Agrippa and its satellite craters.
Agrippa Latitude Longitude Diameter
km mi
B 6.2° N 9.4° E 4 2.5
D 3.8° N 6.7° E 20 12.4
E 5.2° N 8.5° E 5 3.1
F 4.4° N 11.4° E 6 3.7
G 3.9° N 6.2° E 13 8.1
H 4.8° N 10.7° E 6 3.7
S 5.3° N 8.9° E 32 19.9
  • Oblique view facing south from Apollo 15, with Agrippa right of center, and the crater Godin above center showing bright rays.
    Oblique view facing south from Apollo 15, with Agrippa right of center, and the crater Godin above center showing bright rays.
  • Oblique view facing north from Apollo 16, at a different lighting than the image above.
    Oblique view facing north from Apollo 16, at a different lighting than the image above.
  • Agrippa's area with mineral postprosessing
    Agrippa's area with mineral postprosessing

References
  1. "Agrippa". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 0-913135-17-8.
  3. The geologic history of the Moon. USGS Professional Paper 1348. By Don E. Wilhelms, John F. McCauley, and Newell J. Trask. U.S. Government Printing Office, Washington: 1987. Table 12.2.
  4. Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 0-521-81528-2.
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