Chant (crater)

Chant
LRO WAC image
Coordinates40°00′S 109°12′W / 40.0°S 109.2°W / -40.0; -109.2
Diameter33.60 km (20.88 mi)[1]
DepthUnknown
Colongitude110° at sunrise
FormationLate Imbrian[2]
EponymClarence A. Chant
Oblique Lunar Orbiter 5 image, facing west

Chant is a lunar impact crater that is located on the far side of the Moon, behind the southwest limb as seen from the Earth.[3] It lies within the southwestern part of the blanket of ejecta surrounding the Mare Orientale, beyond the Montes Cordillera mountain ring. To the west-northwest is a large formation named Blackett, a walled plain. Southward is the crater Mendel. This crater lies to the northwest of the Mendel-Rydberg Basin, a 630 km wide impact basin of Nectarian age.[2]

On the lunar geologic timescale, this formation dates to the Late Imbrian period.[2] It is a nearly circular crater with a slight outward bulge in the northeast wall. The outer rim is sharp-edged, and the inner sides slope directly downward with only some minor terraces along the east wall. The interior floor is somewhat irregular, particularly in the southern half. There is a small central peak at the midpoint of the floor.[4]

This crater is named after Canadian astronomer and physicist Clarence A. Chant (1865–1956).[5] Its designation was officially adopted by the International Astronomical Union in 1970.[1]

References

  1. 1 2 "Chant". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. 1 2 3 Byrne, Charles J. (2008). The Far Side of the Moon. Springer. p. 178. ISBN 978-1-4899-8806-5.
  3. ↑ Moore, Patrick (2000). The Data Book of Astronomy. CRC Press. p. 66. ISBN 978-1-4200-3344-1.
  4. ↑ Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. p. 123. 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.

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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