 Photograph by MESSENGER showing Arecibo Catena and nearby craters | |
| Feature type | Catena |
|---|---|
| Coordinates | 27°30′S28°24′W / 27.5°S 28.4°W |
| Eponym | Arecibo Observatory |
Arecibo Catena (Arecibo Vallis until March 2013) [1] is a catena on Mercury. It is named after Arecibo Observatory, the former large radio telescope in Puerto Rico. [2]
It is located at latitude 27.5 S, longitude 28.4 W, in the hilly and chaotic terrain antipodal to Caloris Basin.
Arecibo Catena is connected to Petrarch crater.
Humboldt is a large lunar impact crater that is located near the eastern limb of the Moon. Due to foreshortening this formation has an extremely oblong appearance. The actual shape of the crater is an irregular circle, with a significant indentation along the southeastern rim where the prominent crater Barnard intrudes. To the north-northwest of Humboldt is the large crater Hecataeus. Phillips is attached to the western rim. The rim of Humboldt is low, worn, and irregular in outline. The central peak forms a range on the crater floor. The floor surface contains a network of rilles forming a pattern of radial spokes and concentric arcs. There are also some dark patches located near the walls to the northeast, northwest, and southeast. There is a chain of craters leading from the northwest crater rim to a distance almost as long as the crater is wide. This formation is designated Catena Humboldt. Due to its location near the lunar limb, little detail was known about this crater until it was photographed by orbiting spacecraft.
Almanon is a lunar impact crater that lies in the rugged highlands in the south-central region of the Moon. It was named after Abbasid Caliph and astronomer Al-Ma'mun. It is located to the south-southeast of Abulfeda, and to the north-northeast of the smaller crater Geber. The crater chain designated Catena Abulfeda forms a line between the south rim of Abulfeda and the north rim of Almanon, continuing for a length of about 210 kilometers to the Rupes Altai scarp.
Artamonov is a lunar impact crater on the far side of the Moon. Its eroded outer rim does not have the circular shape of most lunar craters, but the overall shape of three or four merged craters. The largest is in the south, with smaller circular bulges to the north and east.
Davy is a small lunar impact crater that is located on the eastern edge of the Mare Nubium. It was named after British physicist Humphry Davy. It overlies the lava-flooded remains of the satellite crater Davy Y to the east, a formation which contains a crater chain designated Catena Davy. To the southeast of Davy is the prominent crater Alphonsus.
Mendeleev is a large lunar impact crater that is located on the far side of the Moon, as seen from the Earth. The southern rim of this walled plain just crosses the lunar equator. Intruding into the eastern rim of Mendeleev is the crater Schuster. Nearly on the opposite side, the smaller Hartmann intrudes into west-southwestern rim.
Gregory is a lunar impact crater on the far side of the Moon. It is located to the southeast of the crater Ibn Firnas, and north-northeast of Bečvář. About one crater diameter to the north is the smaller Morozov.
A crater chain is a line of craters along the surface of an astronomical body. The descriptor term for crater chains is catena, plural catenae, as specified by the International Astronomical Union's rules on planetary nomenclature.
Gomul Catena is a chain of craters on Jupiter's moon, Callisto. It is situated in the northern part of Valhalla multi-ring structure. The craters in the catena seem to have formed from east to west. Such features are thought to originate as secondary craters or due to fragmentation of the impactor.
Catena Artamonov is a 134 km (83 mi) long chain of craters on the Moon. It is named after the nearby crater Artamonov and is located at 26.0°N 105.9°E. The name of the feature was approved by the IAU in 1976.
Tractus Catena is a set of pits in the Arcadia quadrangle of Mars. Its location is centered at 28.17°N 102.77°W. It is 897 km (557 mi) long and was named after a classical albedo feature name. The term "Catena" refers to a chain of craters.
Debussy is a rayed impact crater on Mercury, which was discovered in 1969 by low resolution ground-based radar observations obtained by the Goldstone Observatory. Later in 1990–2005 it was imaged in more detail by the Arecibo Observatory. The crater was initially known as the feature A. The bright appearance of rays in the radar images indicates that the crater is geologically young, because fresh and rough surfaces of young impact craters are good scatterers of radio waves.
Chaikovskij is a crater on Mercury. It has a diameter of 171 kilometers. Its name was adopted by the International Astronomical Union (IAU) in 1976. Chaikovskij is named for the Russian composer Pyotr Ilyich Tchaikovsky, who lived from 1840 to 1893.
Despréz is a crater on Mercury with a diameter of 47.05 kilometers. Its name was adopted by the International Astronomical Union (IAU) in 1979. Despréz is named for the French composer Josquin des Prez, who lived from 1440 to 1521.
Tolkien is one of the northernmost craters on Mercury, located in the Borealis quadrangle at 88.82 N, 211.08 W. It is 50 km in diameter. It was named after the South African born British writer J. R. R. Tolkien. The name was approved by IAU's Working Group for Planetary System Nomenclature on August 6, 2012. Since Tolkien is very close to the north pole, and Mercury has almost no axial tilt, Tolkien receives very little sunlight. S band radar data from the Arecibo Observatory collected between 1999 and 2005 indicates a radar-bright area covers the entire floor of Tolkien, which is probably indicative of a water ice deposit.
Catena Yuri is an elongate depression in Mare Imbrium on the moon. The feature's name was approved by the IAU in 1976.
Vonnegut is a crater on Mercury, near the north pole. It was named by the IAU in 2017 after the American author Kurt Vonnegut. Part of Vonnegut's 1959 novel The Sirens of Titan takes place on Mercury. The crater was referred to as e5 in scientific literature prior to naming.
Sapkota is a crater on Mercury, located near the north pole. It was named by the IAU in 2015, after Nepalese poet Mahananda Sapkota.
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