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Lat: 2.4°N, Long: 43.5°E, Diam: 22 km, Depth: 1.35 km, Rükl: 37

external image normal_Secchi_LO-IV-066H_LTVT.JPGLO-IV-066H Secchi is the crater to the lower right of center. This view includes Montes Secchi which run diagonally from lower left to upper right.


LPOD Photo Gallery Lunar Orbiter Images Apollo Images
- Secchi A and Secchi B, a pair of bowl-shaped craterlets at 3°30' north/ 41°30' east, was captured on frames 2021 to 2024, made by Lunar Orbiter 2. Frame 2024 shows both craterlets (Secchi A near the centre), while nearby Taruntius F is seen on Frame 2021.
- Secchi K was captured on Apollo 10's AS10-29-4261. Note the double ray of the Messier twins in the frame's upper left section!
- The bowl-shaped crater Secchi X (which was called "Lost Crater" during the hey-days of the first orbital Apollo missions) and the nearby Rima Messier, were captured on Lunar Orbiter 5's Frame 047.
- Secchi X (the "Lost Crater") was also captured on Lunar Orbiter 1's Frame 1067.
- Research Lunar Orbiter and Apollo 10 photography: Danny Caes


(LAC zone 61C4) LAC map Geologic map AIC map LTO map


Description: Elger

(IAU Directions) SECCHI.--A partially enclosed little ring-plain S. of Taruntius, with a prominent central mountain and bright walls. There is a short cleft running in a N.W. direction from a point near the W. wall. Schmidt represents it as a row of inosculating craters.

Description: Wikipedia


Additional Information

  • Depth data from Kurt Fisher database
    • Pike, 1976: 1.35 km
    • Arthur, 1974: 1.91 km
    • Westfall, 2000: 1.35 km
    • Viscardy, 1985: 1.9 km
    • Cherrington, 1969: 1.58 km
  • Central peak height
    • Sekiguchi, 1972: a broad elevated part of the floor rises less than 0.5 km - fatastronomer


Pietro Angelo; Italian astronomer, astrophysicist (1818-1878).

LPOD Articles

Seeking Secchi
Little Treats (Secchi X and environs, by Lunar Orbiter 5)
US-1 and other Signposts (an extraordinary LPOD of the equatorial zone at Maskelyne-Secchi, which shows a bonanza of NASA-related nicknames!)


A Portfolio of Lunar Drawings (Harold Hill), page 23.

Angelo Secchi in the Sourcebook Project (William R. Corliss)

- In Mysterious Universe, a handbook of astronomical anomalies (1979) :
  • Page 6: The Corona (C.A.Young, The Sun, 1896).
  • Page 9: Bulges on the Sun's Limb (Dorrit Hoffleit, Sky and Telescope, 1954).
  • Page 480: On the Reversed Curvature of the Shadow on Saturn's Rings (Aldro Jenks, Sidereal Messenger, 1890).