Ritchey (lunar crater)

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Ritchey
Ritchey crater AS16-M-0982.jpg
Apollo 16 image
Coordinates 11°06′S8°30′E / 11.1°S 8.5°E / -11.1; 8.5 Coordinates: 11°06′S8°30′E / 11.1°S 8.5°E / -11.1; 8.5
Diameter 25 km
Depth 1.3 km
Colongitude 352° at sunrise
Eponym George W. Ritchey

Ritchey is a small lunar impact crater named after the American astronomer George Willis Ritchey. [1] The crater is situated to the east of Albategnius in the central lunar highlands. Its somewhat angular rim is broken along the northwestern wall by a pair of smaller, adjacent craters. The floor of Ritchey is fairly flat, with a pair of small central mounds.

Contents

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the satellite midpoint that is closest to Ritchey.

Ritchey crater and its satellite craters taken from Earth in 2012 at the University of Hertfordshire's Bayfordbury Observatory with the telescopes Meade LX200 14" and Lumenera Skynyx 2-1 Ritchey lunar crater map.jpg
Ritchey crater and its satellite craters taken from Earth in 2012 at the University of Hertfordshire's Bayfordbury Observatory with the telescopes Meade LX200 14" and Lumenera Skynyx 2-1
RitcheyLatitudeLongitudeDiameter
A11.3° S7.7° E6 km
B11.9° S8.9° E7 km
C10.9° S9.2° E6 km
D10.2° S9.2° E6 km
E10.7° S8.4° E14 km
F10.5° S7.6° E4 km
J12.3° S9.9° E17 km
M12.4° S9.5° E8 km
N11.1° S10.0° E17 km

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Albategnius (crater)

Albategnius is an ancient lunar impact crater located in the central highlands. It is named after the Muslim astronomer and scientist Muhammad ibn Jābir al-Harrānī al-Battānī, Latinized as Albategnius.

Müller (lunar crater)

Müller is a lunar impact crater. It was named after Austrian astronomer Karl Müller. It is located in the highlands near the center of the Moon, in the center of the triangle formed by the much larger craters Albategnius, Ptolemaeus, and Hipparchus. To the east lies Halley, while to the northwest is Gyldén.

Klein (crater)

Klein is a lunar impact crater that is located across the western rim of the larger crater Albategnius, in the central highlands region of the Moon. The crater is named after German astronomer Hermann Joseph Klein.

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Burnham (crater)

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Halley (lunar crater)

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Feuillée (crater)

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Chang Heng (crater)

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Dellinger (crater)

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Diderot (crater) Lunar impact crater

Diderot is a small lunar impact crater on the far side of the Moon. It lies within the southwestern interior floor of the huge walled plain Fermi, about midway between the basin midpoint and the southwest rim. The crater is saucer-shaped, with smaller craters located just to the northwest and the north. The inner wall is narrower along the eastern side, and has a pair of ridges along the southern face. This crater is otherwise unremarkable.

Dunér (crater)

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Elvey (crater) Lunar impact crater

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References

  1. "Ritchey (lunar crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.