Perrine (crater)

Lunar impact crater

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Feature on the moon

Perrine

LRO image. Perrine is at center. Perrine S crater covers the western portion, and the young crater Perrine T disrupts the walls of the older craters.

Coordinates| 42°07′N 127°57′W﻿ / ﻿42.11°N 127.95°W﻿ / 42.11; -127.95
Diameter| 87.41 km (54.31 mi)
Depth| Unknown
Colongitude| 128° at sunrise
Eponym| Charles D. Perrine
Clementine mosaic Oblique Lunar Orbiter 5 image, facing west

Perrine is a lunar impact crater that is located on the northern hemisphere on the far side of the Moon. It lies to the west of the large walled plain Landau, and to the northeast of the crater Charlier. To the north-northwest is the smaller Gullstrand.

This is an unusual formation that forms part of a chain of connected craters. The western two-thirds of Perrine is overlain by the slightly smaller Perrine S, so that Perrine is crescent-shaped. The western rim of Perrine S is overlain by the still-smaller Perrine T. Perrine S has a worn outer rim, and a small central peak in the middle of the floor.

The surviving rim of Perrine is worn and eroded, with the overlapping pair Perrine E and Perrine G intruding slightly into the eastern rim. A smaller crater has disrupted the southwest end of the outer rim, and a pair of small craters are attached to the northern rim.

Only a small portion of the interior floor of Perrine still survives, forming a crescent-shaped surface between the outer rampart of Perrine S and the inner wall of Perrine. It is marked by a pair of tiny craterlets in the northern half.

The crater was formally named by the IAU in 1970, after Charles D. Perrine.[1] The satellite craters Perrine G and Perrine S were called Crater 94 and Crater 91, respectively.[2]

## Satellite craters

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

Perrine  | Latitude  | Longitude  | Diameter

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E  | 42.8° N  | 124.9° W  | 40 km
G  | 42.1° N  | 124.6° W  | 58 km
L  | 39.2° N  | 127.2° W  | 37 km
S  | 42.5° N  | 128.6° W  | 63 km
T  | 42.4° N  | 130.2° W  | 34 km

## References

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1. ^ Perrine, Gazetteer of Planetary Nomenclature, International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN)
2. ^ Lunar Farside Chart (LFC-1A), 2nd Edition October 1967

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* McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24.
* 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. S2CID 122125855.
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* Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.
* Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3. `{{cite book}}`: ISBN / Date incompatibility (help)
* Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.
* Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.