Elmer (crater)
Apollo 12 image | |
| Coordinates | 10°14′S 84°11′E / 10.23°S 84.18°E |
|---|---|
| Diameter | 16.86 km (10.48 mi) |
| Depth | Unknown |
| Colongitude | 276° at sunrise |
| Eponym | Charles W. Elmer |
Elmer is a small lunar impact crater that is located to the south of Mare Smythii, near the eastern limb of the Moon. This crater is seen at a highly oblique angle from Earth, and the visibility is affected by libration. Elmer lies southwest of the crater Kreiken, and east-southeast of the larger Dale. This is a circular, bowl-shaped crater with an interior floor that occupies about half the total diameter.
The crater was named by the IAU in 1976 after Charles Wesley Elmer, an amateur astronomer and the co-founder of PerkinElmer.