Bergman (crater)

Bergman
Apollo 16 image
Coordinates7°00′N 137°30′E / 7.0°N 137.5°E / 7.0; 137.5
Diameter22.51 km (13.99 mi)[1]
Depth1.35 km (0.84 mi)[2]
Colongitude223° at sunrise
EponymTorbern O. Bergman

Bergman is a small lunar impact crater that is located on the far side of the Moon.[3] It is positioned on the interior floor of the 313 km diameter walled plain Mendeleev, and is attached to the edge of the inner wall to the northwest. On the same walled basin are the craters Moissan to the south and Richards to the east.[4]

The rim of Bergman is roughly circular, and the formation is generally bowl-shaped. The western half of the interior floor is covered with a slope of scree, leaving a small level floor on the eastern side.[5] The infrared spectrum of pure crystalline plagioclase has been identified on the southeast wall.[6]

This crater was named after Swedish astronomer Torbern O. Bergman (1735-1784). Its designation was officially adopted by the International Astronomical Union in 1976.[1]

References

  1. 1 2 "Bergman". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. ↑ Croft, S. K. (1978). Lunar crater volumes: Interpretation by models of impact cratering and upper crustal structure. Lunar and Planetary Science Conference, 9th, Houston, Tex., March 13-17, 1978, Proceedings (A79-39253 16-91). Vol. 3. New York: Pergamon Press, Inc. p. 3711–3733. Bibcode:1978LPSC....9.3711C.
  3. ↑ Byrne, Charles J. (2008). The Far Side of the Moon. Springer. p. 25. ISBN 978-1-4899-8806-5.
  4. ↑ "LAC 66" (PDF). Gazeteer of Planetary Nomenclature. Retrieved 2026-06-04.
  5. ↑ Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. p. 66. ISBN 978-0-521-81528-4.
  6. ↑ 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

  • Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.
  • Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.
  • Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.
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