Nielsen (crater)

Nielsen

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

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  • McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24. 
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  • 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 ed.). Dover. ISBN 978-0-486-20917-3. 
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  • Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1. 
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