Flamsteed (crater)

Flamsteed

Lunar Orbiter 4 image
Coordinates	4°30′S44°18′W / 4.5°S 44.3°W / -4.5; -44.3
Diameter	21 km
Depth	2.2 km
Colongitude	44° at sunrise
Eponym	John Flamsteed

Selenochromatic Image (Si) of the crater area(crater at the top)

Oblique view from Apollo 12

Flamsteed is a small lunar impact crater located on the Oceanus Procellarum, which is named after British astronomer John Flamsteed. ^[1] It lies almost due east of the dark-hued Grimaldi, and north-northwest of the flooded Letronne bay on the south edge of the mare.

Flamsteed P (ring of hills), from Lunar Orbiter 4

Oblique view of Flamsteed P, facing southwest. From Lunar Orbiter 3.

The rim of this crater is not circular in form, having a bulging rim to the southeast. The interior is relatively flat and undistinguished by impacts. The crater lies within the southern rim of a crater that has been almost completely submerged by the basaltic lava flows that formed the Oceanus Procellarum. All that remains of this feature designated Flamsteed P are some low ridges and hills arranged in a circular formation.

Flamsteed is a crater of Eratosthenian age. ^[2]

The Surveyor 1 craft landed within the northeast rim of the buried Flamsteed P feature, about 50 kilometers north-northeast of the Flamsteed crater rim.

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 Flamsteed.

Flamsteed	Latitude	Longitude	Diameter
A	7.9° S	42.9° W	11 km
B	5.9° S	43.7° W	10 km
C	5.5° S	46.3° W	9 km
D	3.2° S	44.9° W	6 km
E	3.7° S	46.1° W	2 km
F	4.7° S	41.1° W	5 km
G	4.8° S	50.9° W	46 km
H	5.9° S	51.7° W	4 km
J	6.6° S	49.3° W	5 km
K	3.1° S	43.7° W	4 km
L	3.4° S	40.9° W	4 km
M	2.4° S	40.6° W	4 km
P	3.2° S	44.1° W	112 km
S	3.4° S	52.2° W	4 km
T	3.1° S	51.6° W	24 km
U	3.6° S	50.2° W	4 km
X	2.3° S	47.3° W	3 km
Z	1.3° S	47.8° W	3 km

References

1. "Gazetteer of Planetary Nomenclature | Flamsteed". usgs.gov. International Astronomical Union . Retrieved August 29, 2017.
2. The geologic history of the Moon. USGS Professional Paper 1348. By Don E. Wilhelms, John F. McCauley, and Newell J. Trask. U.S. Government Printing Office, Washington: 1987. Table 12.2.

• Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
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• 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.
• Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN   978-0-304-35469-6.
• 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.
• Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN   978-0-486-20917-3.
• 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.

External links

• Lunar Orbiter 1 image 192, showing the northeastern part of Flamsteed P, where Surveyor 1 landed