Buch is an old, worn crater that is located in the rugged southern highlands of the Moon. It was named after German geologist Leopold von Buch.[1] It lies to the northeast of the large crater Maurolycus, and the comparably sized crater Büsching is attached to the northeast rim.
 Lunar Orbiter 4 image | |
| Coordinates | 38°48′S 17°42′E / 38.8°S 17.7°E |
|---|---|
| Diameter | 54 km |
| Depth | 1.4 km |
| Colongitude | 343° at sunrise |
| Eponym | Leopold von Buch |
The crater rim is slightly elongated in the northeastern direction, and forms an egg-shaped depression in the surface. The rim has been eroded by many lesser impacts so that the edge is rounded and worn down, and the crater forms only a low depression in the ground. Within the crater the floor is relatively flat and featureless, with no central peak at the midpoint. There is only a small craterlet near the northwest rim.
It has been noted (by Shoemaker and others) that the satellite crater Buch B is unusual in that it possesses both a dark halo of material around the rim and appears to have formed some dark rays. Early speculation was that this may be volcanic in nature, but it was later demonstrated to be a typical impact crater that was formed over a pocket of darker material.[1]
Satellite craters
editBy convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Buch.
| Buch | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 41.0° S | 17.6° E | 19 km |
| B | 37.8° S | 17.0° E | 6 km |
| C | 37.3° S | 17.2° E | 28 km |
| D | 39.6° S | 16.5° E | 7 km |
| E | 39.0° S | 16.5° E | 6 km |
References
edit- ^ "Buch (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
- 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. 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.
- 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
edit
- ^ Chuck Wood's Lunar Picture of the Day for March 12, 2006.