Flamsteed (crater)
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 Lunar Orbiter 4 image | |
| Coordinates | 4°30′S 44°18′W / 4.5°S 44.3°W |
|---|---|
| Diameter | 21 km |
| Depth | 2.2 km |
| Colongitude | 44° at sunrise |
| Eponym | John Flamsteed |
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.
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.
