Cebrenia quadrangle
Elevation map of Cebrenia quadrangle from Mars Orbiter Laser Altimeter (MOLA) data. | |
| Coordinates | 47°30′N 210°00′W / 47.5°N 210°W |
|---|---|
| Eponym | Land of Cebrenia near Troy |
The Cebrenia quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The quadrangle is located in the northeastern portion of Mars' eastern hemisphere and covers 120° to 180° east longitude (180° to 240° west longitude) and 30° to 65° north latitude. The quadrangle uses a Lambert conformal conic projection at a nominal scale of 1:5,000,000 (1:5M). The Cebrenia quadrangle is also referred to as MC-7 (Mars Chart-7).[1] It includes part of Utopia Planitia and Arcadia Planitia. The southern and northern borders of the Cebrenia quadrangle are approximately 3,065 km (1,905 mi) and 1,500 km (930 mi) wide, respectively. The north to south distance is about 2,050 km (1,270 mi) (slightly less than the length of Greenland).[2] The quadrangle covers an approximate area of 4,900,000 square kilometres (1,900,000 sq mi), about 3% of Mars' surface area.[3]
Etymology
The feature is named after Cebrenia, a country near ancient Troy. The name was approved by the International Astronomical Union (IAU) in 1958.[4]
Physiography and geology
The quadrangle's prominent features are the large craters Mie and Stokes, a volcano, Hecates Tholus, and a group of mountains, Phlegra Montes.
Viking 2 (part of Viking program) landed near Mie on September 3, 1976. Its landing coordinates were 48° N and 226° W.[5]
See also
References
- ^ Davies, M.E.; Batson, R.M.; Wu, S.S.C. “Geodesy and Cartography” in Kieffer, H.H.; Jakosky, B.M.; Snyder, C.W.; Matthews, M.S., Eds. Mars. University of Arizona Press: Tucson, 1992.
- ^ Distances calculated using NASA World Wind measuring tool. http://worldwind.arc.nasa.gov/ Archived 2018-01-06 at the Wayback Machine.
- ^ Approximated by integrating latitudinal strips with area of R^2 (L1-L2)(cos(A)dA) from 30° to 65° latitude; where R = 3889 km, A is latitude, and angles expressed in radians. See: https://stackoverflow.com/questions/1340223/calculating-area-enclosed-by-arbitrary-polygon-on-earths-surface.
- ^ "Cebrenia". Gazetteer of Planetary Nomenclature. International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN). 2006-10-01. Retrieved 2014-02-04.
- ^ Ezell E. K., Ezell L. N. On Mars: Exploration of the Red Planet. 1958-1978. (Chapter 10) Archived 2016-06-03 at the Wayback Machine. The NASA History Series. Scientific and Technical Information Branch, 1984. NASA, Washington, D.C.