Dorsa Harker is a wrinkle ridge at 14°30′N64°00′E / 14.5°N 64.0°E in Mare Crisium on the Moon. It is 213 km long and was named after Alfred Harker, an English petrologist, in 1976. [1]
A wrinkle ridge is a type of feature commonly found on lunar maria. 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 when the basaltic lava cooled and contracted. 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. These are found near craters.
Mare Crisium is a lunar mare located in the Moon's Crisium basin, just northeast of Mare Tranquillitatis. The basin is of the Pre-Imbrian period, 4.55 to 3.85 billion years ago.
The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite. It is the fifth-largest natural satellite in the Solar System, and the largest among planetary satellites relative to the size of the planet that it orbits. The Moon is after Jupiter's satellite Io the second-densest satellite in the Solar System among those whose densities are known.
Harker Heights is a city in Bell County, Texas, United States. As of the 2010 census, 26,700 people resided in the city, up from a population of 17,308 in 2000. This makes Harker Heights the third-largest city in Bell County, after Killeen and Temple. Incorporated in 1960, the city derives its name from one of the two original landowners and founder, Harley Kern. Harker Heights is part of the Killeen – Temple – Fort Hood metropolitan area. People usually refer to the town as just "Heights".
Bellevue is a city in Erie, Huron and Sandusky counties in the U.S. state of Ohio, located 61 miles southwest of Cleveland and 45 miles southeast of Toledo. The population was 8,202 at the 2010 census. The National Arbor Day Foundation has designated Bellevue as a Tree City USA.
Fahrenheit is a tiny lunar impact crater located in the southeast part of the Mare Crisium. This area of the surface is nearly devoid of impact features of interest. To the east are the Dorsa Harker wrinkle ridges, and beyond them is Promontorium Agarum at the edge of the mare. The landing site of the Soviet Luna 24 probe is located about 15 kilometers to the southeast.
Cancer (♋️) is the fourth astrological sign in the Zodiac, originating from the constellation of Cancer. It spans from 90° to 120° celestial longitude. Under the tropical zodiac, the Sun transits this area between approximately June 21 and July 23, and under the sidereal zodiac, the Sun transits this area between approximately July 21 and August 9.
Alfred Harker FRS was an English geologist who specialised in petrology and interpretive petrography. He worked for the Geological Survey of Scotland and conducted extensive surveying and geological studies of western Scotland and the Isle of Skye. He and other British geologists pioneered the use of thin sections and the petrographic microscope in interpretive petrology.
Harker may refer to:
Álvaro Affonso de Miranda Neto is an Olympic-class Brazilian show jumping rider. He was married to Athina Onassis. He is president of the organizing committee behind the Athina Onassis International Horse Show, which debuted in 2007 as the fifth stage of the Global Champions Tour in São Paulo. In 2008, the AOIHS-São Paulo event was the final phase of the tour. For the tour in 2009, the host city of the AOIHS was Rio de Janeiro.
Dorsa Aldrovandi is a wrinkle ridge system at 23.6°N 28.7°E in Mare Serenitatis on the Moon. It is about 127 km long and was named after the 16th century Italian naturalist Ulisse Aldrovandi. The north end of the feature is at the crater Le Monnier, and the south end is close to the craters Clerke and Abetti.
Dorsa Andrusov is a wrinkle ridge system at 1.0°S 57.0°E in Mare Fecunditatis on the Moon. It is 160 km in diameter and was named after Soviet geologist Nicolai Ivanovich Andrusov in 1976 by the IAU.
Dorsa Barlow is a wrinkle ridge system on the Moon, in Mare Tranquilitatis near the border with Mare Serenitatis, centered at 14.0°N 30.6°E. It is about 110 km long and was named after British crystallographer William Barlow in 1976.
Dorsa Smirnov is a wrinkle ridge system at 27.3°N 25.3°E in eastern Mare Serenitatis on the Moon. It is 222 km long and was named after Soviet geologist Sergei Sergeevich Smirnov by the IAU in 1976.
Dorsa Lister is a wrinkle ridge system at 20.3°N 23.8°E on the Moon, in southern Mare Serenitatis. It is 180 km in diameter and was named after English naturalist and physician Martin Lister in 1976.
Dorsa Burnet are wrinkle ridges at 28.4°N 57.0°W in Oceanus Procellarum on the Moon. They are about 194 km long and were named after Thomas Burnet by the IAU in 1976.
Dorsa Cato is a wrinkle ridge at 1.0°N 47.0°E on the Moon. It is approximately 130 km long and was named after Roman geological engineer Cato the Elder in 1976 by the IAU.
Dorsa Dana is a wrinkle ridge at 3.0°N 90.0°E in Mare Smythii on the Moon. It is 82 km long and was named after American geologist James Dwight Dana in 1976.
Dorsa Sorby is a wrinkle ridge system at 19.0°N 14.0°E in Mare Serenitatis on the Moon. It is 76 km long and was named after British geologist Henry Clifton Sorby in 1976.
Dorsa Stille is a wrinkle ridge system at 27.0°N 19.0°W in Mare Imbrium on the Moon. It is 66 km long and was named after German geologist Hans Stille in 1976.
Dorsa Tetyaev is a wrinkle ridge system at 19.9°N 64.2°E in Mare Crisium on the Moon. It is 188 km long and was named after Soviet geologist Mikhail Mikhailovich Tetyaev in 1979.
Solar purpura is a skin condition characterized by large, sharply outlined, 1- to 5-cm, dark purplish-red ecchymoses appearing on the dorsa of the forearms and less often the hands.
Cibele Dorsa was a Brazilian actress, model and writer. She also appeared on the cover of the April 2008 issue of Playboy Brazil.
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