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Lat: 1.5°S, Long: 0.5°W, Diam: 40 km, Depth: 1.5 km, Rükl: 44

external image Oppolzer_LO_iv_101_h3.jpg
LOIV 101 H3 Oppolzer is the "ruined" enclosure to the left of center. To its southeast is the similar, but larger (52 km) Réaumur. The larger of the two craters on the floor of Oppolzer is 3-km Oppolzer K. Just to the north of Oppolzer, in Sinus Medii, is 3-km Oppolzer A, the named feature closest to the center of the lunar coordinate grid. A portion of Rima Oppolzer is also visible, cutting across the floor and north rim of Réaumur.


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  • The mare region to the north and west of Oppolzer was intensively mapped as a potential Apollo landing site on all five Lunar Orbiter missions (see Hansen, 1970).
  • Oppolzer A was captured on frames I-130M to I-133M, made by Lunar Orbiter 1, where the region mentioned above was designated Site IP-5. The last one of the four (Frame I-133M) also shows the near side's "centre" in the image's upper right corner (near the cluster of craterlets). Research Danny Caes
  • The same location was Sites IIP-8 (Frames II-113M to II-136M) and IIS-7 (Frame II-93M) on Lunar Orbiter II; Site IIIS-11 (Frame III-84M) on Lunar Orbiter III; and Site V-27 (Frames V-108M to V-115M) on Lunar Orbiter V.
  • Oppolzer was also captured on several oblique north looking frames made by Apollo 16's Fairchild camera, such as frame AS16-M-0843, in which Oppolzer is detectable near the central part of the curved horizon. Research Danny Caes


(LAC zone 77A2) LAC map Geologic map LM map AIC map


Description: Wikipedia


Additional Information

Depth data from Kurt Fisher database
  • Westfall, 2000: 1.5 km


  • Named for Theodor von Oppolzer (October 26, 1841–December 26, 1886), an astronomer and mathematician born in Prague. He was considered a very highly capable astronomer and mathematician. In his short life, Dr. von Oppolzer authored over 300 papers, with most concerning the orbital elements of comets and asteroids. He also published a two volume manual detailing the determination of comets and planets. Both of his works served as standard astronomy references for many years. Von Oppolzer is probably best known today for his 1887 Canon of eclipses, which, long before the days of digital computers, listed the circumstances of every solar and lunar eclipse from 1,200 B.C. to 2,161 A.D. It was reprinted by Dover Publications in 1962, and is still widely available, and consulted by both astronomers and historians.
  • This name was not in Mary Blagg's Collated List (1913), but it was included in the original IAU nomenclature of Named Lunar Formations (1935). According to Whitaker (p. 226), this name was introduced by Krieger and König.

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