Olbers (crater)

Olbers (crater)

Coordinates	7°24′N 75°54′W / 7.4°N 75.9°W / 7.4; -75.9Coordinates: 7°24′N 75°54′W / 7.4°N 75.9°W / 7.4; -75.9
Diameter	74 km
Depth	3.0 km
Colongitude	76° at sunrise
Eponym	Heinrich W. M. Olbers

Olbers is a lunar crater that lies at the west edge of the Oceanus Procellarum, near the western limb of the Moon. It lies to the northwest of the crater Hevelius, and to the north of the indistinct Hedin. Farther to the south is the crater Riccioli. Due to its location, this crater appears very oblong because of foreshortening. It is viewed nearly edge-on, making observation of the interior difficult from the Earth.

The rim of Olbers is somewhat worn, with notches to the north, east, and south. The interior floor is relatively flat, especially toward the eastern rim, and is not marked by notable craterlets. The floor is covered by ray material and ejecta from the adjacent Glushko.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Olbers.

Olbers	Latitude	Longitude	Diameter
B	6.8° N	74.1° W	16 km
D	10.2° N	78.2° W	116 km
G	8.4° N	74.5° W	10 km
H	8.7° N	74.4° W	8 km
K	6.8° N	78.2° W	24 km
M	8.0° N	81.2° W	33 km
N	9.0° N	79.7° W	22 km
S	6.8° N	76.7° W	21 km
V	9.1° N	73.0° W	7 km
W	5.9° N	81.5° W	18 km
Y	6.5° N	83.6° W	21 km

The following craters have been renamed by the IAU:

• Olbers A — See Glushko (crater).

References

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• Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. http://planetarynames.wr.usgs.gov/. Retrieved 2007-08-05. 
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• 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. 
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• Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 0-913135-17-8. 
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• 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.