Chang Heng (crater)

Chang Heng
Oblique Apollo 16 image (facing northwest)
Coordinates19°00′N 112°12′E / 19.0°N 112.2°E / 19.0; 112.2
Diameter42.65 km (26.50 mi)[1]
DepthUnknown
Colongitude248° at sunrise
EponymZhang Heng
Oblique Apollo 14 Hasselblad camera image (facing east)

Chang Heng is a degraded lunar impact crater that is located on the Moon's far side.[2] It lies less than one crater diameter to the northeast of the walled plain Fleming. The rim of Chang Heng is eroded, with a pair of small craters along the northern rim and tiny craters along the south and east edges. The interior floor contains a small, concentric crater that is about one third the diameter of Chang Heng.[3]: 47 

The crater is named after Chinese astronomer Zhang Heng (78–139).[4] This designation was formally adopted by the International Astronomical Union in 1970.[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 Chang Heng.[5]

Chang Heng[3]: 295  Latitude Longitude Diameter
C 20.4° N 114.0° E 25 km

References

  1. 1 2 "Chang Heng". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. ↑ Moore, Patrick (2000). The Data Book of Astronomy. CRC Press. p. 66. ISBN 978-1-4200-3344-1.
  3. 1 2 Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
  4. ↑ 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.
  5. ↑ 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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