(formerly Inghirami D)
Lat: 44.8°S, Long: 81.8°W, Diam: 55 km, Depth: 5.24 km, Rükl: 61
Depth data from Kurt Fisher database
- Westfall, 2000: 5.24 km
- Named for Wilhelm Heinrich Walter Baade (March 24, 1893–June 25, 1960), a German astronomer who emigrated to the USA in 1931. He took advantage of wartime blackout conditions during World War II, which reduced light pollution at Mount Wilson Observatory, to resolve stars in the center of the Andromeda galaxy for the first time, which led him to define distinct "populations" for stars. He discovered that there are two types of Cepheid variable stars, identified the optical counterparts of various radio sources and discovered 10 asteroids.
- Called Inghirami D (Catalog number 2251) in the original IAU nomenclature of Blagg and Müller (1935), where the name is attributed to Beer and Mädler. It was also apparently called Asaph Hall by Franz.
- The replacement name Baade was proposed by Arthur and Whitaker in their Rectified Lunar Atlas (1963) and approved by the IAU in 1964.
W. Baade in the Sourcebook Project (William R. Corliss)
- In Mysterious Universe, a handbook of astronomical anomalies (1979) :
- Pages 604-605: Lightning, Novae, and Quasars (C.E.R.Bruce, Nature, 1966).