Sibelius (crater)

Sibelius

MESSENGER NAC
Planet	Mercury
Coordinates	49°30′S145°22′W / 49.5°S 145.37°W / -49.5; -145.37
Quadrangle	Michelangelo
Diameter	94 km (58 mi)
Eponym	Jean Sibelius

Sibelius is a crater on Mercury. ^[1] It has a diameter of 94 kilometres (58 miles). Its name was adopted by the International Astronomical Union (IAU) in 1985. Sibelius is named for the Finnish composer Jean Sibelius. ^[2] The crater was first imaged by Mariner 10 in 1974. ^[3]

Sibelius has a complex central peak that is offset from the center to the southwest. Within the central peak complex is a dark spot of low reflectance material (LRM), closely associated with hollows. ^[4]

To the south of Sibelius is the crater Vincente, and to the east are Delacroix and Shelley. To the northwest is We’wha crater.

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  Highest resolution view obtained by MESSENGER
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  The region around Sibelius in exaggerated color. The rays of Han Kan crater cross the scene.

References

1. "Sibelius". Gazetteer of Planetary Nomenclature. NASA . Retrieved 4 March 2022.
2. Douglas Whittet (April 2015). "Sibelius and astronomy: beyond 'The Sky at Night'". Astronomy & Geophysics . 56 (2): 27–31. doi: 10.1093/astrogeo/atv063 . Retrieved 2 June 2022.
3. Davies, M. E.; Dwornik, S. E.; Gault, D. E.; Strom, R. G. (1978). Atlas of Mercury. National Aeronautics and Space Administration. pp. 1–128. ISBN   978-1-114-27448-8. Special Publication SP-423.
4. Zhiyong Xiao, Robert G. Strom, David T. Blewett, Paul K. Byrne, Sean C. Solomon, Scott L. Murchie, Ann L. Sprague, Deborah L. Domingue, Jörn Helbert, 2013. Dark spots on Mercury: A distinctive low-reflectance material and its relation to hollows. Journal of Geophysical Research Planets. doi.org/10.1002/jgre.20115