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Horrocks (on the floor of Hipparchus)

Lat: 4.0°S, Long: 5.9°E, Diam: 30 km, Depth: 2.98 km, Rükl: 45

external image Horrocks_LO_iv_101_h3.jpg
LOIV 101 H3


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During the mission of Apollo 16 in april 1972, a number of interesting oblique northward-looking Metric/Mapping Fairchild camera photographs were made of Horrocks. These photographs are: AS16-M-0835 to 0841 in Magazine REV 27, and AS16-M-1400 to 1405 in Magazine REV 37.
Horrocks was also captured on several frames made by Apollo 16's orbital panoramic ITEK-camera, such as: AS16-P-4632 and AS16-P-4639 (near the rightmost margins of both frames), and also AS16-P-5354 (near the rightmost margin).
Post-sunrise views of Horrocks were captured on Apollo 16's earlier ITEK-frames AS16-P-4588 and AS16-P-4593 (again: near the rightmost margins of both frames).
Research orbital Apollo 16 photography: Danny Caes


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Description: Elger

(IAU Directions) HORROCKS.--This fine ring-plain, 18 miles in diameter, stands on the N. side of the interior of Hipparchus, close to the border. It has a continuous wall, rising on the W. to a height of nearly 8,000 feet above the interior, and a distinct central mountain.

Description: Wikipedia


Additional Information

Depth data from Kurt Fisher database
  • Arthur, 1974: 2.98 km
  • Westfall, 2000: 2.98 km
  • Viscardy, 1985: 2.98 km
  • Cherrington, 1969: 2.8 km


Jeremiah Horrocks (1618 – January 3, 1641), sometimes given as Jeremiah Horrox, was an English astronomer who made the first observation of a transit of Venus.

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