- Plato (crater)
lunar crater data
caption=Plato crater (center) in a telescopic photo of the Moon
latitude=51.6
N_or_S=N
longitude=9.3
E_or_W=W
diameter=109 km
depth=1.0 km
colong=9
eponym=Plato Plato is the "maria"-surfaced remains of a lunar
impact crater . It is located on the northeastern shore of theMare Imbrium , at the western extremity of theMontes Alpes mountainous range. In the "maria" to the south are several rises collectively named theMontes Teneriffe . To the north lies the wide stretch of theMare Frigoris . East of the crater, among theMontes Alpes , are severalrille s collectively named the "Rimae Plato".The age of the Plato walled-plain is about 3.84 billion years; younger than the
Mare Imbrium to the south. The rim is irregular with 2-km-tall jagged peaks that project prominent shadows across the crater floor when the sun is at a low angle. Sections of the inner wall display signs of past slumping, most notably a large triangular slide along the western side. The rim of Plato is circular, but from the Earth it appears oval due toforeshortening .The flat floor of Plato crater has a relatively low
albedo , making it appear dark in comparison to the surrounding rugged terrain. The floor is free of significant impact craters and lacks a central peak. However there are a few small craterlets scattered across the floor.Plato has developed a reputation for various transient lunar phenomena, including flashes of light, unusual colour patterns, and areas of hazy visibility. These anomalies are likely a result of seeing conditions, combined with the effects of different illumination angles of the
Sun .The
astronomer Johannes Hevelius originally called this feature the 'Greater Black Lake'.Gallery
atellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Plato crater.
The following craters have been renamed by the IAU:
* Plato A — "See" Bliss crater.Plato in fiction
The crater Plato is the location of
Moonbase Alpha on the science-fiction TV seriesSpace 1999 .References
External links
* [http://www.lpi.usra.edu/resources/lunar_orbiter/bin/info.shtml?351 Lunar Orbiter Photo Number IV-127-H3]
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