Hevelius (crater)

Hevelius
	Mosaic of Lunar Orbiter 4 images
Coordinates	2.2°N 67.3°W
Diameter	106 km
Depth	1.8 km
Colongitude	68° at sunrise
Eponym	Johannes Hevelius

Hevelius is a low-rimmed lunar impact crater that lies at the western edge of the Oceanus Procellarum, named after the astronomer Johannes Hevelius. The smaller but prominent crater Cavalerius is joined to the northern rim by low ridges. Due south of Hevelius is the crater Lohrmann and the dark-hued Grimaldi.

Closeup of the Rimae Hevelius at low sun angle, in the northeast portion of the crater floor. From Lunar Orbiter 3

Only a low, eroded rim of Hevelius rises above the surface. The western wall is overlain by several small impacts. The flat floor of the crater has been flooded by lava, and is now cross-crossed by a system of small clefts named the Rimae Hevelius. There is a low, one-km-high central peak offset to the northwest of the midpoint. The northeastern part of the interior is more irregular and contains a straight ridge running toward the southeast. Along the northwest floor, near the inner wall, is a small crater.

This feature is sometimes referred to as Hevel, the astronomer's name in German (Hevelius is a Latinized form).

Satellite craters

Hevelius D image from Lunar Orbiter 1

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Hevelius.

Hevelius	Latitude	Longitude	Diameter
A	2.9° N	68.1° W	14 km
B	1.4° N	68.8° W	14 km
D	3.1° N	60.8° W	8 km
E	2.9° N	65.7° W	9 km
J	0.7° N	69.7° W	14 km
K	1.5° N	70.0° W	6 km
L	2.0° N	70.3° W	7 km

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References

Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.CS1 maint: ref=harv (link)
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McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24.CS1 maint: ref=harv (link)
Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (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.CS1 maint: ref=harv (link)
Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.CS1 maint: ref=harv (link)
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Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.CS1 maint: ref=harv (link)
Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3.CS1 maint: ref=harv (link)
Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.CS1 maint: ref=harv (link)
Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.CS1 maint: ref=harv (link)

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