Daedalus (crater)

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Daedalus
The lunar farside crater Daedalus from Apollo 11 (NASA photo)
Coordinates5°54′S 179°24′E / 5.9°S 179.4°E / -5.9; 179.4
Diameter93 km
Depth3.0 km
Colongitude181° at sunrise
EponymDaedalus
Lunar Orbiter 2 image
Closeup of the interior from Apollo 11

Daedalus is a prominent crater located near the center of the far side of the Moon. This formation dates to the Early Imbrian epoch of the lunar geologic timescale.[1] The inner wall is terraced, and there is a cluster of central peaks on the relatively flat floor. The infrared spectrum of pure crystalline plagioclase has been identified on the central peaks.[2] The smaller crater Daedalus B is attached to the north northeastern rim.

Because its location is shielded from radio emissions from the Earth, it has been proposed as the site of a future giant radio telescope.[3] This would be scooped out of the crater itself, much like the Arecibo radio telescope, but on a vastly larger scale.

The crater is named after Daedalus of Greek myth.[4] It is pictured in famous photographs taken by the Apollo 11 astronauts. In contemporary sources it was called Crater 308 (this was a temporary IAU designation that preceded the establishment of far-side lunar nomenclature).[5]

Nearby craters of note include Icarus to the east and Racah to the south. Less than a crater diameter to the north-northeast is Lipskiy.

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 Daedalus.

Daedalus Latitude Longitude Diameter
B 4.1° S 179.8° W 23 km
C 4.1° S 178.9° W 68 km
G 6.6° S 177.4° W 33 km
K 8.3° S 178.5° W 24 km
M 8.1° S 179.5° E 13 km
R 7.7° S 175.2° E 41 km
S 6.8° S 172.9° E 20 km
U 4.2° S 174.9° E 30 km
W 3.5° S 177.5° E 70 km

On the lunar geologic timescale, Daedalus U is a degraded crater that dates from the Nectarian period.[6]

See also

References

  1. Tompkins, Stefanie; Pieters, Carle M. (January 1999). "Mineralogy of the lunar crust: Results from Clementine". Meteoritics & Planetary Science. 34 (1): 25–41. Bibcode:1999M&PS...34...25T. doi:10.1111/j.1945-5100.1999.tb01729.x.
  2. Donaldson Hanna, K. L.; et al. (July 2014). "Global assessment of pure crystalline plagioclase across the Moon and implications for the evolution of the primary crust". Journal of Geophysical Research: Planets. 119 (7): 1516–1545. Bibcode:2014JGRE..119.1516D. doi:10.1002/2013JE004476.
  3. Graham-Rowe, Duncan (January 3, 2002). "Astronomers plan telescope on Moon". New Scientist. Retrieved 2026-05-15.
  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. "Lunar Farside Chart (LFC-1A)" (2nd ed.). Lunar & Planetary Institute. October 1967. Retrieved 2026-05-15.
  6. Purohit, Suchit; et al. (October 10, 2018). "Automatic crater classification framework based on shape parameters". Current Science. 115 (7). Current Science Association: 1351–1358. JSTOR 26978409.

Sources