Hopmann (crater)

Hopmann

Oblique Lunar Orbiter 5 image, facing west
Coordinates	50.8°S 160.3°E / -50.8; 160.3
Diameter	88 km
Depth	Unknown
Colongitude	202° at sunrise
Formation	Nectarian
Eponym	Josef Hopmann

Oblique Lunar Orbiter 2 view, facing south

SMART-1 image of part of Hopmann

Hopmann is a lunar impact crater that lies in the southern hemisphere on the Moon's far side. It is attached to the northern part of a large walled plain named Poincaré. Less than one crater diameter to the north-northwest is the crater Garavito.

On the lunar geologic timescale, Cori dates to the Nectarian period. The outer rim of this crater is degraded due to impact erosion. Still the inner walls possess some terrace structures along the southern edge. A small crater overlays the northern rim, and a pair of tiny craters line along the eastern edge.

The interior floor is relatively level and has a lower albedo than the surrounding surface, giving it a slightly dark appearance. There are some low ridges near the crater midpoint, and a double-ringed rim to the south-southeast of the center. The spectra of the central peak fits a olivine-bearing noritic gabbro mineralogy, which originated from a depth of 8.8 to 14.0 km.

A tiny craterlet to the northwest of the midpoint is surrounded by a small skirt of higher albedo material, giving it the appearance of a white patch. Hopmann has a complex lunar swirl pattern that is associated with a weak magnetic anomaly.

See also

• 1985 Hopmann, minor planet

References

Sources

• Wood, Chuck (July 23, 2007). "5 Sights in One Crater". Lunar Photo of the Day. Archived from the original on September 29, 2007. Retrieved 2007-07-16.
• 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. Retrieved 2007-08-05.
• 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.
• Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3. {{cite book}}: ISBN / Date incompatibility (help)
• 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

• ESA, "SMART-1’s view of Crater Hopmann: on the shoulder of a giant", May 3, 2006.