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Lat: 38.9°N, Long: 10.7°E, Diam: 32 km, Depth: 2.69 km, Rükl: 13

external image normal_Calippus_LO-IV-103H-LTVT.JPG
Lunar Orbiter IV-103H Calippus is the moderate sized crater on the right; the large ruined crater with the high wall casting shadows to its west is Calippus C. The lesser peaks to the south of that are unnamed.


LPOD Photo Gallery Lunar Orbiter Images
- Calippus is also noticeable on Apollo 15's Fairchild photograph AS15-M-1536. The right part of this photograph shows the curved horizon, looking North (note: on the LPI's version, North is "to the right"). The central part (the location a little "below" the central part) of the curved horizon is occupied by the Montes Caucasus. Near the horizon, at the most northern part of the Caucasus's photographed section is... Calippus. - DannyCaes Dec 18, 2007
(take a look at the HIGH-RESOLUTION version of this photograph, the Print Resolution JPG, 3 MB).
- See also the zoomify scan of AS15-M-1536 in the ASU's Apollo Image Archive, and zoom in at the Calippus region near the top of the frame!- DannyCaes Apr 16, 2011


(LAC zone 26D1) LAC map Geologic map


Description: Elger

(IAU Directions) CALIPPUS.--A bright ring-plain 17 miles in diameter, situated in the midst of the intricate Caucasus Mountain range. On the W. is a brilliant peak rising more than 13,000 feet above the Palus Nebularum, and nearer the border, on the N.W., is a second, more than 500 feet higher, with many others nearly as lofty in the vicinity. Calippus has not apparently a central peak or any other features on the floor.

Description: Wikipedia


Additional Information

  • Depth data from Kurt Fisher database
    • Arthur, 1974: 2.69 km
    • Westfall, 2000: 2.69 km
    • Viscardy, 1985: 2.69 km
  • Where the shadow is longest (in the north), the east wall of Calippus rises about 3500 m above the floor. Where the shadow is shortest, in the south, the depth is only about 2000 m. (LTVT measurements on LO-IV-103H - Jim Mosher)
  • To the west, where one encounters the partial 40-km diameter crater Calippus C, the shadows indicate the east wall of that crater rises some 5500 m above its floor. This makes that wall slightly taller than the peak casting the pyramid-shaped shadow just to its south (~5200 m). (LTVT measurements on LO-IV-103H - Jim Mosher)


  • Callippus (or Calippus) (ca. 370 BC–ca. 300 BC) was a Greek astronomer and mathematician.
  • Calippus A, a crater southwest of Calippus itself, and east of Theaetetus, was once called Glasenapp by Felix Chemla Lamech. The I.A.U. did not accept the name Glasenapp for Calippus A. Instead, it (the name Glasenapp) went to a crater on the moon's far-side (which is officially known as Glazenap).
  • Research Lamech's "Glasenapp": Ewen A. Whitaker and Danny Caes (August 2003, mail correspondence).

LPOD Articles

Almost Twins


Lamech's "Glasenapp": Mapping and Naming the Moon, a history of lunar cartography and nomenclature (Ewen A. Whitaker).