(formerly Littrow B)
Lat: 21.68°N, Long: 29.79°E, Diam: 6.66 km, Depth: 1.44 km, Rükl: 25
AS17-M-1501 Because the camera was to the south of this crater, its small flat bottom (which looks to be only about 1 km in diameter) is displaced from the center by perspective. The nearby rilles are part of Rimae Littrow.
- Lunar Orbiter 5's frames 066, 067, 068, and 069 are four photographs of Clerke and environs (Rimae Littrow, up to Dorsa Aldrovandi).
- Apollo 17's orbital panoramic ITEK-camera frames AS17-P-2311 and 2316 show Clerke during local morning illumination (on both frames scroll to the right).
- Apollo 17's orbital color Hasselblad photograph AS17-151-23217 shows the inner slopes of Clerke.
- Additional research Lunar Orbiter and Apollo photography: Danny Caes
- IAU page: Clerke
- Depth data from Kurt Fisher database
- Westfall, 2000: 1.44 km
- Viscardy, 1985: 1.43 km
- The shadow in AS17-M-1501 indicates a depth of about 1600 m, increasing to the north. - Jim Mosher
- Included in ALPO list of bright ray craters
- Named for Agnes Mary Clerke (February 10, 1842 – January 20, 1907), an astronomer and writer, mainly in the field of astronomy. She achieved a world-wide reputation in 1885, on the appearance of her exhaustive treatise, A Popular History of Astronomy during the Nineteenth Century. In 1903 she was elected an honorary member of the Royal Astronomical Society, a rank previously held only by two other women, Caroline Herschel and Mary Somerville. Her sister, Ellen Mary Clerke (1840–1906), also wrote about astronomy.
- This replacement name for a formerly lettered crater was introduced on LTO-42C2 (for which it served as the chart title). It appears in the cumulative list of approved names in IAU Transactions XVB (1973). Since it does not appear in any prior IAU Transactions, it was probably approved at the 1973 meeting. Biographical information was unofficially reported in Ashbrook, 1974. - Jim Mosher
- List of features named for women.
Something to investigate...
On page 224 of Mysterious Universe, a handbook of astronomical anomalies (William R. Corliss, The Sourcebook Project, 1979), a certain Clerke is mentioned in the article Lights in the Moon (C. Stanley Ogilvy, Popular Astronomy, 1949). Now, is (or was) this Clerke perhaps Agnes Mary Clerke? (or maybe Ellen Mary Clerke?). - DannyCaes Apr 21, 2015