BRIEF DESCRIPTION
The eastern edge of Mare Fecunditatis and the eastern limb of the Moon are intersected by a wide and desnse field of craters, in which orientation is not easy. The crater Langrenus is a beautiful sight through a telescope. During favorable librations the dark surface of Mare Smythii is visible close to the limb of the Moon. Please refer to your copy of the Antonin Rukl lunar atlas chart, page 125.

EARTH-BASED TELESCOPIC IMAGES:
Image - Langrenus (Sussenbach)
Image - Langrenus (Genovese)

LUNAR ORBITER IMAGES:
Lunar Orbiter Database
Acosta, 13 km
Andrusov, Dorsa
Ansgarius, 94 km
Atwood, 29 km
Avery, 9 km
Barkla, 43 km
Bilharz, 43 km
Black, 18 km
Born, 15 km
Carrillo, 16 km
Dale, 22 km
Elmer, 17 km
Fecunditatis, Mare
Geissler, 16 km
Gilbert, 107 km
Haldane, 38 km
Hargreaves, 16 km
Houtermans, 30 km
Kapteyn, 49 km
Kastner, 105 km
Kiess, 63 km
Krieken, 23 km
Langrenus, 132 km
la Perouse, 78 km
Lohse, 42 km
Maclaurin, 50 km
Morley, 14 km
Naonobu, 35 km
Rankine, 9km
Smythii, Mare
Somerville, 15 km
Van Vieck, 31 km
von Behring, 39 km
Webb, 22 km
Weierstrauss, 33 km
Widmanstatten, 46 km

APOLLO IMAGES:
Image - Earthrise over Mare Smythe, Apollo 11

RESEARCH UPDATES: 
Langrenus & TLP - Encyclopedia of Astrobiolgyty (Darling)
Moon Shot - Luna 16 (Lunascan)
Langrenus (Lunascan)
Lights Glow On The Moon (Whitehouse) Original  (Back-up Lunascan Site) Copy