Macrobius (crater)

Macrobius is a prominent lunar impact crater located to the northwest of the Mare Crisium. Its diameter is 63 km. It was named after ancient Roman writer Macrobius.[1] It lies on the southeast edge of the Lacus Bonitatis, a small lunar mare. The somewhat smaller crater Tisserand lies just to the east.

Oblique view from Apollo 17
Macrobius
Apollo 17 mapping camera image
Coordinates21.3°N 46.0°E / 21.3; 46.0
Diameter63 km
Depth3.9 km
Colongitude314° at sunrise
EponymMacrobius

The outer wall of Macrobius has a multiply terraced inner surface, with some slumping along the top of the rim. The small satellite crater Macrobius C lies across the western rim, but the wall is otherwise relatively free of significant wear. In the center of the floor is a central mountain complex. There is a low ridge in the western interior, but the remainder of the floor is relatively level.

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 Macrobius.

Macrobius Latitude Longitude Diameter
C 20.8° N 45.0° E 10 km
E 18.7° N 46.8° E 10 km
F 22.5° N 48.5° E 11 km
K 21.5° N 40.2° E 12 km
M 25.0° N 41.0° E 42 km
N 22.8° N 40.8° E 5 km
P 23.0° N 39.5° E 18 km
Q 20.4° N 47.6° E 9 km
S 23.3° N 49.6° E 26 km
T 23.8° N 48.6° E 29 km
U 25.0° N 42.8° E 6 km
V 25.4° N 43.3° E 5 km
W 24.8° N 44.6° E 26 km
X 23.0° N 42.2° E 4 km
Y 23.6° N 42.2° E 5 km
Z 24.3° N 42.6° E 5 km

The following craters have been renamed by the IAU.

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References
Satellite craters of Macrobius
Macrobius at center, near the terminator as viewed from Earth, with Mare Crisium to the right
  1. "Macrobius (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  • Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.CS1 maint: ref=harv (link)
  • Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.CS1 maint: ref=harv (link)
  • 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.CS1 maint: ref=harv (link)
  • McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24.CS1 maint: ref=harv (link)
  • 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.CS1 maint: ref=harv (link)
  • Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.CS1 maint: ref=harv (link)
  • Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.CS1 maint: ref=harv (link)
  • Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.CS1 maint: ref=harv (link)
  • Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3.CS1 maint: ref=harv (link)
  • Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.CS1 maint: ref=harv (link)
  • Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.CS1 maint: ref=harv (link)
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