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For precise applications, many coordinate systems have been defined for the Moon, each with a slightly different prime meridian. The IAU recommends the "mean Earth/polar axis" system, [ 1 ] in which the prime meridian is the average direction (from the Moon's center) of the Earth's center.
Selenography is the study of the surface and physical features of the Moon (also known as geography of the Moon, or selenodesy). [1] Like geography and areography , selenography is a subdiscipline within the field of planetary science .
18.1° E 109 km Sinus Iridum: Bay of Rainbows 44.1° N 31.5° W 236 km Sinus Lunicus: Lunik Bay 31.8° N 1.4° W 126 km Sinus Medii: Bay of the center 2.4° N 1.7° E 335 km Sinus Roris: Bay of Dew 54.0° N 56.6° W 202 km Sinus Successus: Bay of Success 0.9° N 59.0° E 132 km
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Geological studies of the Moon are based on a combination of Earth-based telescope observations, measurements from orbiting spacecraft, lunar samples, and geophysical data. . Six locations were sampled directly during the crewed Apollo program landings from 1969 to 1972, which returned 382 kilograms (842 lb) of lunar rock and lunar soil to Earth [8] In addition, three robotic Soviet Luna ...
Lunar north polar region mosaic by LRO.The north pole is in the center. The lunar north pole is the point in the Northern Hemisphere of the Moon where the lunar axis of rotation meets its surface.
Chart of lunar maria with lines of longitude and latitude. The prime meridian is the centre of the near side of the Moon.. A planetary coordinate system (also referred to as planetographic, planetodetic, or planetocentric) [1] [2] is a generalization of the geographic, geodetic, and the geocentric coordinate systems for planets other than Earth.
Maurolycus 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. By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Maurolycus.