Cremona (crater)

Cremona
LRO mosaic
Coordinates67°30′N 90°36′W / 67.5°N 90.6°W / 67.5; -90.6
Diameter85.12 km (52.89 mi)[1]
DepthUnknown
Colongitude92° at sunrise
FormationNectarian[2]
EponymLuigi Cremona
Lunar Orbiter 4 image

Cremona is a lunar impact crater that is located along the north-northwestern limb of the Moon. From the Earth this crater is viewed from the side, and the visibility is affected by libration effects.[3] To be viewed in any detail, this crater must be seen or photographed from orbit. It is located midway between the crater Boole to the south-southeast and, on the far side of the Moon, the crater Lindblad.[2]

This formation dates to the Nectarian period of the lunar geologic timescale.[2] It is a relatively old, worn crater that is overlaid by a number of smaller craters. The rim has been worn down and rounded by lesser impacts, leaving only a wide depression in the surface with somewhat irregular interior walls. Small craters lie across the north and northwestern rims, and the satellite crater Cremona L is laid across the southern rim. A band of tiny craterlets lies across the northeastern part of the rim, continuing part of a pattern of multiple craterlets that continue to the north.[4]: 9 

The craters Cremona B and C form a double-crater pair in the northwestern part of the floor. The inner wall on the western side is unusually wide, forming a rough interior surface. The floor in the eastern half is more level, and contains the remnant of a central peak attached to the eastern rim of Cremona C.[4]: 9 

This crater is named after Italian mathematician and educator Luigi Cremona (1830–1903).[5] His name was introduced into lunar nomenclature by David W. G. Arthur and Ewen Whitaker with the Rectified Lunar Atlas (1963).[3][6] Its designation was officially adopted by the International Astronomical Union in 1964.[1]

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 Cremona.[7]

Cremona[4]: 296  Latitude Longitude Diameter
A 69.6° N 91.0° W 47 km
B 67.9° N 92.4° W 20 km
C 67.2° N 92.2° W 15 km
L 66.1° N 90.0° W 23 km

References

  1. 1 2 "Cremona". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program. Retrieved 2026-07-14.
  2. 1 2 3 Byrne, Charles J. (2008). The Far Side of the Moon. Springer. p. 170, 174. ISBN 978-1-4899-8806-5.
  3. 1 2 Whitaker, E. A.; et al. (1963). Rectified Lunar Atlas: Supplement No. 2 to the Photographic Lunar Atlas. Tucson: University of Arizona Press. Retrieved 2026-06-01. See Field 1.
  4. 1 2 3 Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
  5. ↑ Menzel, D. H.; et al. (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. See p. 182.
  6. ↑ Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. p. 234. ISBN 978-0-521-62248-6.
  7. ↑ Grego, P. (2015). "Satellite Crater". In Hargitai, H.; Kereszturi, Á. (eds.). Encyclopedia of Planetary Landforms. New York, NY: Springer. doi:10.1007/978-1-4614-3134-3_328.

Sources

  • 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.

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