Byrgius (crater)

Byrgius

Lunar Orbiter 4 image of Byrgius, with Byrgius A at right, and Byrgius D in upper left
Coordinates 24°42′S 65°18′W / 24.7°S 65.3°W / -24.7; -65.3Coordinates: 24°42′S 65°18′W / 24.7°S 65.3°W / -24.7; -65.3
Diameter 87 km
Depth 4.6 km
Colongitude 65° at sunrise
Eponym Joost Bürgi

Byrgius is a lunar crater located in the western part of the Moon, near the limb. As a result, Byrgius appears strongly oval in form due to foreshortening. To the northwest is the nearly ruined crater Lamarck. The rim of Byrgius is worn and eroded, with Byrgius A overlying the eastern rim and Byrgius D lying across the northwest. The floor is relatively flat and undistinguished by significant craterlets. Byrgius A possesses its own ray system that extends for over 400 kilometres.

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 Byrgius.

Byrgius Latitude Longitude Diameter
A 24.5° S 63.7° W 19 km
B 23.9° S 60.8° W 23 km
D 24.1° S 67.1° W 27 km
E 23.5° S 66.2° W 18 km
H 23.7° S 62.4° W 27 km
K 23.0° S 61.8° W 14 km
N 22.3° S 63.1° W 20 km
P 22.6° S 64.1° W 19 km
R 26.5° S 60.7° W 7 km
S 26.2° S 61.4° W 43 km
T 25.1° S 61.5° W 5 km
U 25.8° S 67.2° W 13 km
V 26.0° S 67.8° W 9 km
W 26.1° S 68.5° W 14 km
X 25.7° S 65.4° W 6 km

References

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  • 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. 
  • 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. 
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