Birt is a lunar impact crater located in the eastern half of the Mare Nubium and west of the Rupes Recta. Patrick Moore called this, "a very interesting little crater".[3] Birt is a bowl-shaped formation with a raised rim, slightly intersected along the southeast edge by the much smaller crater Birt A. To the west of Birt, a rille named Rima Birt[4] runs north-northwest in an arc from Birt F to Birt E.[5]: 94
 | |
| Coordinates | 22°24′S 8°30′W / 22.4°S 8.5°W |
|---|---|
| Diameter | 15.81 km (9.82 mi)[1] |
| Depth | 3.47 km (2.16 mi)[2] |
| Colongitude | 9° at sunrise |
| Eponym | William R. Birt |
This crater was named after British selenographer William R. Birt (1804-1881).[1] Its name was incorporated into lunar nomenclature by German astronomer J. F. Julius Schmidt in 1878.[6] The designation was officially adopted by the International Astronomical Union in 1935.[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 Birt.
| Birt[5]: 95 | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 22.5° S | 8.2° W | 7 km |
| B | 22.2° S | 10.2° W | 5 km |
| C | 23.7° S | 8.3° W | 2 km |
| D | 21.0° S | 9.8° W | 3 km |
| E | 20.7° S | 9.6° W | 5 km |
| F | 22.3° S | 9.1° W | 3 km |
| G | 23.1° S | 8.2° W | 2 km |
| H | 23.0° S | 9.1° W | 2 km |
| J | 23.0° S | 9.4° W | 2 km |
| K | 22.4° S | 9.7° W | 2 km |
| L | 21.6° S | 9.3° W | 3 km |
Gallery
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References
edit- 1 2 3 "Birt". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
- ↑ Pike, R. J. (September 1976). "Crater Dimensions from Apollo Data and Supplemental Sources". The Moon. 15 (3–4): 463–477. Bibcode:1976Moon...15..463P. doi:10.1007/BF00562253.
- ↑ Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.
- ↑ Grego, Peter (2005). The Moon and How to Observe It. Astronomers' Observing Guides Series. London: Springer-Verlag. p. 178. ISBN 1-85233-748-6.
- 1 2 Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
- ↑ Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. p. 224. ISBN 978-0-521-62248-6.
Sources
edit- 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.
- Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.
External links
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- Wood, Chuck (August 8, 2006). "Odd Interiors". Lunar Photo of the Day. Archived from the original on 2024-05-11. Retrieved 2017-01-25.