Lansberg (crater)

Lansberg
	Lunar Orbiter 4 image
Coordinates	0°18′S 26°36′W / 0.3°S 26.6°W
Diameter	38.75 km (24.08 mi)
Depth	2.75 km
Colongitude	26° at sunrise
Formation	Upper Imbrian
Eponym	Philippe van Lansberge

Oblique view facing west, from Apollo 14

Lansberg is a lunar impact crater on the Mare Insularum. Describing the rim, Thomas William Webb said that "it rises very gradually without, but is steep and terraced within".^[4]

On the lunar geologic timescale, Lansberg is a crater of Upper (Late) Imbrian age.^[3] The crater has a high rim and a central mountain. There are terraces along the inner walls, and the tops have slumped to produce a sharp edge. This formation is not noticeably eroded, and there are no significant impact craters within the interior.

The crater is correctly spelled "Lansberg", but has sometimes been written "Landsberg" instead.^[4] It is named for the Belgian/Dutch astronomer Philippe van Lansberge (1561-1632). This designation was formally adopted by the International Astronomical Union in 1935.^[1]

Approximately 40 km to the southeast of Lansberg is the landing site of the Luna 5 probe, and a further 60 km in the same direction is the landing site of Surveyor 3 and Apollo 12.^[5]

*Weinek's Lunar Atlas* (1899) page of Lansberg crater which is on the top right

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 Lansberg.

Lansberg	Latitude	Longitude	Diameter
A	0.2° N	31.1° W	9 km
B	2.5° S	28.1° W	9 km
C	1.5° S	29.2° W	17 km
D	3.0° S	30.6° W	11 km
E	1.8° S	30.3° W	6 km
F	2.2° S	30.7° W	9 km
G	0.6° S	29.4° W	10 km
L	3.5° S	26.4° W	5 km
N	1.9° S	26.4° W	4 km
P	2.3° S	23.0° W	2 km
X	1.2° N	27.8° W	3 km
Y	0.7° N	28.2° W	4 km

References

1 2 "Lansberg". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
↑ Pike, R. J. (September 1976). "Crater Dimensions from Apollo Data and Supplemental Sources". The Moon. 15 (3–4): 463–477. Bibcode:1976Moon...15..463P. doi:10.1007/BF00562253.
1 2 Wilhelms, Don E.; McCauley, John F.; Trask, Newell J. (1987). The geologic history of the Moon. USGS Professional Paper 1348. Washington: U.S. Government Printing Office. doi:10.3133/pp1348. Table 11.2.
1 2 Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. pp. 136, 154–159. Reprint: ISBN 978-0-486-20917-3
↑ Lunar and Planetary Institute, Digital Lunar Orbiter Photographic Atlas of the Moon, Photo Number IV-125-H3 (Annotated Lunar Orbiter 4 image)

Sources

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. Archived from the original on 2012-02-08. 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.
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

Oblique view of Lansberg at high sun angle from Apollo 12: AS12-51-7538

[GPN-1] 1 2 "Lansberg". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.

[Pike_1976-2] Pike, R. J. (September 1976). "Crater Dimensions from Apollo Data and Supplemental Sources". The Moon. 15 (3–4): 463–477. Bibcode:1976Moon...15..463P. doi:10.1007/BF00562253.

[Wilhelms_et_al_1987-3] 1 2 Wilhelms, Don E.; McCauley, John F.; Trask, Newell J. (1987). The geologic history of the Moon. USGS Professional Paper 1348. Washington: U.S. Government Printing Office. doi:10.3133/pp1348. Table 11.2.

[Webb_1962-4] 1 2 Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. pp. 136, 154–159. Reprint: ISBN 978-0-486-20917-3

[5] Lunar and Planetary Institute, Digital Lunar Orbiter Photographic Atlas of the Moon, Photo Number IV-125-H3 (Annotated Lunar Orbiter 4 image)

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