Dorsum Oppel
Dorsum Oppel is a wrinkle ridge at in Mare Crisium on the Moon. It is long and was named after the German paleontologist Albert Oppel in 1976.- The ridge trends north from Yerkes (crater), Yerkes crater. Peirce (crater), Peirce and Swift (lunar crater), Swift craters lie to the east of the Dorsum. References

Ridges on the Moon, Oppel {{Moon-stub ...
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Dorsum Oppel - LROC - WAC
Dorsum (plural Dorsa) is a Latin word. In science, it may refer to: Anatomy * Dorsum (anatomy), the upper side of an animal, or the back in erect organisms ** Dorsum humanum, the human back * Dorsum of foot, the top of the foot * Dorsum of hand (also called the opisthenar), the back of the hand * The back of the tongue, which is used for articulating dorsal consonants Other uses * ''Dorsum'' (moth), genus of moths of the family Erebidae * Dorsum (astrogeology), wrinkle ridges found on planets or moons * Theta Capricorni Theta Capricorni, Latinized from θ Capricorni, is a binary star in the southern constellation of Capricornus, positioned 0.58° south of the ecliptic. Sometimes, this star is called by the name Dorsum, meaning ''the back (of the goat)' ...

Dorsum Oppel AS17-M-0290
Dorsum (plural Dorsa) is a Latin word. In science, it may refer to: Anatomy * Dorsum (anatomy), the upper side of an animal, or the back in erect organisms ** Dorsum humanum, the human back * Dorsum of foot, the top of the foot * Dorsum of hand (also called the opisthenar), the back of the hand * The back of the tongue, which is used for articulating dorsal consonants Other uses * ''Dorsum'' (moth), genus of moths of the family Erebidae * Dorsum (astrogeology), wrinkle ridges found on planets or moons * Theta Capricorni Theta Capricorni, Latinized from θ Capricorni, is a binary star in the southern constellation of Capricornus, positioned 0.58° south of the ecliptic. Sometimes, this star is called by the name Dorsum, meaning ''the back (of the goat)' ...

Wrinkle Ridge
A wrinkle ridge is a type of feature commonly found on lunar maria, or basalt plains. These features are low, sinuous ridges formed on the mare surface that can extend for up to several hundred kilometers. Wrinkle ridges are tectonic features created after the lava cooled and solidified. They frequently outline ring structures buried within the mare, follow circular patterns outlining the mare, or intersect protruding peaks. They are sometimes called ''veins'' due to their resemblance to the veins that protrude from beneath the skin. Wrinkle ridges are named with the Latin designation ''dorsum'' (plural ''dorsa''). The standard IAU nomenclature uses the names of people (generally scientists) to identify wrinkle ridges on the Moon. For example, the Dorsa Burnet are named for Thomas Burnet, and the Dorsum Owen is named after George Owen of Henllys. Wrinkle ridges can also be found on Mars, for example in Chryse Planitia, on several of the asteroids that have been visited ...
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Mare Crisium
Mare Crisium (Latin ''crisium'', the "Sea of Crises") is a lunar mare located in the Moon's Crisium basin, just northeast of Mare Tranquillitatis. Mare Crisium is a basin of Nectarian age. It was formed by the flooding of basaltic lava that filled an ancient asteroid impact. Characteristics Mare Crisium is in diameter, and in area. It has a very flat floor, with a ring of wrinkle ridges (''dorsa'') toward its outer boundaries. These are Dorsa Tetyaev, Dorsum Oppel, Dorsum Termier, and Dorsa Harker. The cape-like feature protruding into the southeast of the mare is Promontorium Agarum. On the western rim of the mare is the palimpsest Yerkes, and Lick to the southeast is similar. The crater Picard is located just to the east of Yerkes, and northwest of Picard are the craters Peirce and Swift. The ray system of the crater Proclus overlie the northwestern mare. Mare Anguis can be seen northeast of Mare Crisium. A mass concentration (mascon), or gravitational high, w ...
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Moon
The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar day) that is synchronized to its orbital period (Lunar month#Synodic month, lunar month) of 29.5 Earth days. This is the product of Earth's gravitation having tidal forces, tidally pulled on the Moon until one part of it stopped rotating away from the near side of the Moon, near side, making always the same lunar surface face Earth. Conversley, the gravitational pull of the Moon, on Earth, is the main driver of Earth's tides. In geophysical definition of planet, geophysical terms, the Moon is a planetary-mass object or satellite planet. Its mass is 1.2% that of the Earth, and its diameter is , roughly one-quarter of Earth's (about as wide as the contiguous United States). Within the Solar System, it is the List of Solar System objects by ...
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Albert Oppel
Carl Albert Oppel (19 December 1831 – 23 December 1865) was a German paleontologist. History He was born at Hohenheim in Württemberg, on 19 December 1831. He first went to the University of Tübingen, where he graduated with a Ph.D. in 1853. The results of his work was published in ''Die Juraformation Englands, Frankreichs und des südwestlichen Deutschlands'' (1856–1858). He went to the Paläontologische Museum München, Palaeontological Museum at Munich in 1858 and became an assistant there. It was in 1860 that he became the Professor of Palaeontology at the University of Munich. Then, a year later, he became the director of the Palaeontological Collection. Of his later works, it can be said that the most important was ''Paläontologische Mittheilungen aus dem Museum des Königlichen Bayerischen Staates'' (1862–1865). He died on 23 December 1865 at the age of 34. The wrinkle ridge Dorsum Oppel on the Moon is named after him, as is the fossil prawn genus ''Albertop ...
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Yerkes (crater)
Yerkes is a lunar impact crater near the western edge of Mare Crisium. It was named after American financier Charles Yerkes. To the east of Yerkes is the crater Picard, and farther to the north is Peirce. In the past the interior of Yerkes has been almost completely inundated by lava, leaving only a shallow remnant of a rim above the mare. The rim is widest on the western and southern portions, and barely existent to the east, forming a thin curve in the surface. A low ridge runs from the north rim to Yerkes E in the north-northwest. The floor has a similar albedo to the nearby mare, so the feature is not sharply distinguished from the surroundings. Satellite craters By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Yerkes. References * * * * * * * * * * * External links LTO-62A1 Yerkes— L&PI topographic map In modern mapping, a topographic map or topographic sheet ...
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Peirce (crater)
Peirce is a small Lunar craters, lunar impact crater in the western part of Mare Crisium. That dark, circular lunar mare is located in the east-northeasterly part of the Moon's near side. It was named after the American mathematician Benjamin Peirce. Peirce lies to the north of the craters Yerkes (crater), Yerkes and Picard (crater), Picard, and southeast of Macrobius (crater), Macrobius located outside the mare. Just over a crater diameter to the north of Peirce is the smaller Swift (lunar crater), Swift. To the northwest is the wrinkle ridge Dorsum Oppel. The rim of Peirce is roughly circular, with a slight outward bulge along the northwestern rim. There are indications of slumping along the sides of this section, producing a wider inner wall. It is generally bowl-shaped, and is marked only by a tiny craterlet along the inner southeast rim. The interior is marked by several furrows, ridges, as well as a low, conical hill near the midpoint. Peirce is a crater of Eratosthenian ...
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Swift (lunar Crater)
Swift is a small lunar impact crater located in the northwestern part of the Mare Crisium, in the northeast part of the Moon The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar ...'s near side. Within two crater diameters to the south is the larger crater Peirce. It was named after American astronomer Lewis A. Swift. Swift was previously designated Peirce B. This circular and bowl-shaped formation has a small floor at the midpoint of the sloping interior walls. It is a symmetrical crater with little evidence of wear from minor impacts. This crater has been incorrectly named 'Graham' on some maps. References * * * * * * * * * * * {{refend Impact craters on the Moon ...
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