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Bürg
	Lunar Orbiter 4 image
Coordinates	45°00′N 28°12′E / 45.0°N 28.2°E
Diameter	40 km
Depth	1.8 km
Colongitude	332° at sunrise
Eponym	Johann T. Bürg

Bürg is a prominent lunar impact crater in the northeast part of the Moon. It lies within the lava-flooded, ruined crater formation designated Lacus Mortis. To the south and southeast is the crater pair Plana and Mason. To the west, beyond the rim of Lacus Mortis, is the prominent crater Eudoxus.

Name

Bürg is named for Austrian astronomer Johann Tobias Bürg,^[1] who discovered Antares's companion star during an occultation event in 1819.^[2]

Crater

The rim of Bürg is nearly circular with relatively little wear. The interior is bowl-shaped, and there is a large central mountain at the midpoint. Along the crest of this mountain some observers have noted a small, crater-like pit. The crater has a ray system, and is consequently mapped as part of the Copernican System.^[3]

To the west is a rille system designated the Rimae Bürg, which spans a distance of about 100 kilometers.

It is characterised by an extremely high rockfall density by lunar standards.^[4]^: 2

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 Bürg.

Bürg	Latitude	Longitude	Diameter
A	46.8° N	33.1° E	12 km
B	42.6° N	23.5° E	6 km

References

^ "Bürg (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
^ Plotner, Tammy (2009). The Night Sky Companion: A Yearly Guide to Sky-Watching 2009. New York: Springer Science & Business Media. p. 319. ISBN 978-0-387-79509-6.
^ Wilhelms, Don E.; With Sections By Mccauley, John F.; Trask, Newell J. (1987), The geologic history of the Moon, USGS Professional Paper: 1348. Plate 11: Copernican System, doi:10.3133/pp1348
^ Bickel, Valentin Tertius; et al. (2020-06-08). "Impacts drive lunar rockfalls over billions of years". Nature Communications. 11: 1–7. doi:10.1038/s41467-020-16653-3. eISSN 2041-1723. PMC 7280507.

Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
Cocks, Elijah E.; Cocks, Josiah C. (1995). Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature. Tudor Publishers. ISBN 978-0-936389-27-1.
McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24.
Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (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.
Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.
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.
Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3.
Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.
Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.

External links

Wood, Chuck (2006-07-30). "A Stained Death". Lunar Photo of the Day. Archived from the original on 2007-09-27. Retrieved 2006-07-30.

[1] "Bürg (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.

[2] Plotner, Tammy (2009). The Night Sky Companion: A Yearly Guide to Sky-Watching 2009. New York: Springer Science & Business Media. p. 319. ISBN 978-0-387-79509-6.

[3] Wilhelms, Don E.; With Sections By Mccauley, John F.; Trask, Newell J. (1987), The geologic history of the Moon, USGS Professional Paper: 1348. Plate 11: Copernican System, doi:10.3133/pp1348

[4] Bickel, Valentin Tertius; et al. (2020-06-08). "Impacts drive lunar rockfalls over billions of years". Nature Communications. 11: 1–7. doi:10.1038/s41467-020-16653-3. eISSN 2041-1723. PMC 7280507.

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Bürg (crater)

Name

Crater

Satellite craters

References

External links