Orlov (crater)
![]() Lunar Orbiter 1 image | |
| Coordinates | 25°42′S 175°00′W / 25.7°S 175.0°W |
|---|---|
| Diameter | 81 km |
| Depth | Unknown |
| Colongitude | 184° at sunrise |
| Formation | Nectarian[1] |
| Eponym | Aleksandr I. Orlov Sergei V. Orlov |

Orlov is a lunar impact crater located on the Moon's far side,[2] to the northeast of the larger crater Leeuwenhoek. To the north-northwest of Orlov is De Vries, and to the east-southeast is Rumford.
On the lunar geologic timescale, Orlov dates to the Nectarian period.[1] This crater lies between two larger satellite craters. Orlov Y is attached to the northern rim, and Leeuwenhoek E is connected along the southwest. The latter is also the location of an outward bulge in the rim of Orlov, giving it a wider interior wall along that side. There is some terracing along the eastern inner wall of Orlov. Orlov D, an oval-shaped crater, is attached to the outer rim along the northeast.
The interior floor of Orlov is relatively level with a central ridge formation located near the midpoint. The spectra of this peak fits an olivine-bearing gabbroic norite mineralogy, which originated from a depth of 8.1 to 12.8 km.[3] There are some small craters along the extended inner wall to the southwest.
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Orlov.
| Orlov | Latitude | Longitude | Diameter |
|---|---|---|---|
| D | 24.8° S | 173.4° W | 27 km |
| Y | 22.8° S | 175.1° W | 126 km |

References
- 1 2 Moriarty, D. P.; Pieters, C. M. (March 2018). "The Character of South Pole-Aitken Basin: Patterns of Surface and Subsurface Composition". Journal of Geophysical Research: Planets. 123 (3): 729–747. Bibcode:2018JGRE..123..729M. doi:10.1002/2017JE005364.
- ↑ Moore, Patrick (2000). The Data Book of Astronomy. CRC Press. p. 70. ISBN 978-1-4200-3344-1.
- ↑ Cahill, J. T. S.; et al. (September 2009). "Compositional variations of the lunar crust: Results from radiative transfer modeling of central peak spectra". Journal of Geophysical Research. 114 (E9) E09001. Bibcode:2009JGRE..114.9001C. doi:10.1029/2008JE003282.
Sources
- 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.

