Nielsen (crater)

Nielsen (crater)

Coordinates	31°48′N 51°48′W / 31.8°N 51.8°W / 31.8; -51.8Coordinates: 31°48′N 51°48′W / 31.8°N 51.8°W / 31.8; -51.8
Diameter	10 km
Depth	Unknown
Colongitude	52° at sunrise
Eponym	Axel V. Nielsen Harald H. Nielsen

Nielsen is a lunar impact crater on the Oceanus Procellarum. It is located north-east of Montes Agricola on the western hemisphere of the Moon. To the east-southeast is the crater Wollaston.

Nielsen is a bowl-shaped formation that lies astride a small ridge that runs north-northwestwards towards the Mons Rümker. The latter is an unusual raised formation of lunar domes.

The crater is named jointly after the Danish astronomer Axel Nielsen (1902-1970) and the Danish–American physicist Harald Herborg Nielsen (1903-1973).

References

• Andersson, L. E.; Whitaker, E. A., (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097. 
• Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. http://planetarynames.wr.usgs.gov/. Retrieved 2007-08-05. 
• Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 0-521-81528-2. 
• Cocks, Elijah E.; Cocks, Josiah C. (1995). Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature. Tudor Publishers. ISBN 0-936389-27-3. 
• McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. http://host.planet4589.org/astro/lunar/. 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.  edit
• Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 0-304-35469-4. 
• Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 0-521-33500-0. 
• Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 0-913135-17-8. 
• Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revision ed.). Dover. ISBN 0-486-20917-2. 
• Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 0-521-62248-4. 
• Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 1-85233-193-3. 

External links

• Wood, Charles A. (September 8, 2004). "Where in the Moon is Nielsen?". Lunar Picture of the Day. http://www.lpod.org/archive/LPOD-2004-09-08.htm. Retrieved 2007-09-05. 
• Staff (2007). "LTO-38B2: Nielsen". Lunar & Planetary Institute. http://www.lpi.usra.edu/resources/mapcatalog/LTO/lto38b2_4/. Retrieved 2007-09-05. 

http://www.lunarrepublic.com/atlas/sections/c2.shtml