Marius (crater)

Marius is a lunar impact crater located on the Oceanus Procellarum. The surface to the west and north of this crater contains a large number of lunar domes spread across an area over a hundred kilometers in diameter that may be of volcanic origin dubbed the Marius Hills. These domes, if volcanic, may have been formed by magma that is fairly more viscous than the volcanic material that formed the basaltic lunar maria. The nearest named crater feature is Reiner to the southwest. Kepler is located to the east-southeast, and rays from that formation reach the rim of Marius.

Rima Marius, with Marius crater itself at right, from Apollo 15
Oblique view of eastern Marius Hills with Marius Crater in upper right by Lunar Orbiter 2
Marius
Coordinates11.9°N 50.8°W / 11.9; -50.8
Diameter41 km
Depth1.7 km
Colongitude50° at sunrise
EponymSimon Marius
Apollo 12 photo

The floor of Marius has been flooded by basaltic lava, and the surface is relatively smooth and flat. There is no central rise, but a small craterlet Marius G lies in the northeast part of the floor. The crater rim is low and generally circular in form.

The area of this crater was one of the locations proposed for an Apollo mission, but the expedition was subsequently cancelled. About 50 kilometres to the southeast was the landing site of the Luna 7 probe.

One of the numerous rilles in the crater's surrounding area has been found to host a probable cave skylight of a lava cave in 2009. Observations by the Japanese probe SELENE indicate the hole is about 90 meters deep, and the roof — the top part of the tube — is about 25 meters thick.[1] This would be a likely location to consider moon colonization should the hole connect to a long enough section of ancient lava tube.

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 Marius.

Marius Latitude Longitude Diameter
A 12.6° N 46.0° W 15 km
B 16.3° N 47.3° W 12 km
C 14.0° N 47.6° W 11 km
D 11.4° N 45.0° W 9 km
E 12.1° N 52.7° W 6 km
F 12.1° N 45.3° W 6 km
G 12.1° N 50.6° W 3 km
H 11.3° N 50.3° W 5 km
J 10.5° N 46.9° W 3 km
K 9.4° N 50.6° W 4 km
L 15.9° N 55.7° W 8 km
M 17.4° N 54.9° W 6 km
N 18.7° N 54.7° W 4 km
P 17.9° N 51.3° W 4 km
Q 16.5° N 56.2° W 5 km
R 13.6° N 50.3° W 5 km
S 13.9° N 47.1° W 7 km
U 9.6° N 47.6° W 3 km
V 9.9° N 48.3° W 2 km
W 9.4° N 49.7° W 3 km
X 9.7° N 54.9° W 5 km
Y 9.8° N 50.7° W 2 km
gollark: (I know they seem to be working on them now, but it's after years of denying they were necessary or good)
gollark: Go as in golang? In which case, mandatory lol no generics.
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gollark: Also tinc and some proprietary things like zerotier/tailscale.
gollark: Although it isn't peer to peer unless you manually set up peer links between them all.

References
  • Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.CS1 maint: ref=harv (link)
  • Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. Retrieved 2007-08-05.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)
  1. Plaitt, Phil (2010-03-10). "Spelunking the Lunar Landscape". Bad Astronomy Blog. Discover Magazine.
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