Lat: 11.1°S, Long: 8.5°E, Diam: 24 km, Depth: 1.3 km, Rükl: 45
Depth data from Kurt Fisher database
- Arthur, 1974: 1.3 km
- Westfall, 2000: 1.4 km
- Viscardy, 1985: 1.3 km
George Willis Ritchey (December 31, 1864 – November 4, 1945) was an American optician and telescope maker and astronomer. He coinvented the Ritchey-Chrétien reflector telescope along with Henri Chrétien. He played a major role in designing the mountings and making the mirrors of the 60-inch and 100-inch telescopes at Mount Wilson Observatory. He worked closely with George Ellery Hale.
Somewhere over the Rainbow (Ritchey and its environs during the local pre-sunset hours).
Tres Amicis (a peculiar tiny row of three impact craterlets, north of Ritchey F) (say: about halfway between Ritchey F and Hind C).
- Ritchey, G. W. 1904. Astronomical Photography with the Forty-Inch Refractor and the Two-Foot Reflector of the Yerkes Observatory. Publications of the Yerkes Observatory of the University of Chicago; v. 2, no. 1, Chicago : University of Chicago Press, 1904., 75 p.