Berkner (crater)

Berkner
Oblique Lunar Orbiter 5 image, facing west
Coordinates25°08′N 105°14′W / 25.13°N 105.24°W / 25.13; -105.24
Diameter87.62 km (54.44 mi)[1]
DepthUnknown
Colongitude106° at sunrise
EponymLloyd V. Berkner
Satellite craters of Berkner

Berkner is a lunar impact crater that is located on the far side of the Moon,[2] just past the western limb. It is attached to the east-southeast rim of the crater Parenago.[3] Just to the south is the Robertson, and to the southeast is Helberg.[4]

The outer rim of this crater has been worn and eroded, particularly along the northwest half where a small crater overlays the outer rim. The most intact part of the rim is to the southeast, while the remainder has been impacted and notched by smaller impacts, and to the southwest overlain by material.[5]: 54  The spectra of the central peak fits an anorthositic norite mineralogy, which originated from a depth of 8.6 to 13.6 km.[6]

This crater was named after American geophysicist Lloyd V. Berkner (1905–1967).[7] Prior to its formal naming by the International Astronomical Union in 1970,[1] Berkner was called Crater 176.[8]

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 Berkner.[9]

Berkner[5]: 293  Latitude Longitude Diameter
A 27.6° N 104.8° W 22 km
B 29.3° N 104.1° W 33 km
Y 27.8° N 106.2° W 31 km

References

  1. 1 2 "Berkner". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. ↑ Moore, Patrick (2000). The Data Book of Astronomy. CRC Press. p. 66. ISBN 978-1-4200-3344-1.
  3. ↑ Byrne, Charles J. (2008). The Far Side of the Moon. Springer. p. 149. ISBN 978-1-4899-8806-5.
  4. ↑ "LAC 54" (PDF). Gazeteer of Planetary Nomenclature. Retrieved 2026-06-05.
  5. 1 2 Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
  6. ↑ Cahill, J. T. S.; et al. (September 2009). "Compositional variations of the lunar crust: Results from radiative transfer modeling of central peak spectra". Journal of Geophysical Research. 114 (E9) E09001. Bibcode:2009JGRE..114.9001C. doi:10.1029/2008JE003282.
  7. ↑ Menzel, D. H.; et al. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews. 12 (2): 136–186. Bibcode:1971SSRv...12..136M. doi:10.1007/BF00171763. S2CID 122125855.
  8. ↑ "Lunar Farside Chart (LFC-1A)" (2nd ed.). October 1967. Retrieved 2026-06-05.
  9. ↑ Grego, P. (2015). "Satellite Crater". In Hargitai, H.; Kereszturi, Á. (eds.). Encyclopedia of Planetary Landforms. New York, NY: Springer. doi:10.1007/978-1-4614-3134-3_328.

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.
This page is issued from Wikipedia. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.