Fabry (crater)
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Fabry is a large
lunar Lunar most commonly means "of or relating to the Moon". Lunar may also refer to: Arts and entertainment * ''Lunar'' (series), a series of video games * "Lunar" (song), by David Guetta * "Lunar", a song by Priestess from the 2009 album ''Prior t ...
impact crater An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters ...
of the form termed a walled plain. It is located on the
far side ''The Far Side'' is a single-panel comic created by Gary Larson and syndicated by Chronicle Features and then Universal Press Syndicate, which ran from December 31, 1979, to January 1, 1995 (when Larson retired as a cartoonist). Its surrealis ...
of the
Moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...
, just beyond the northeastern limb. Parts of this area are sometimes brought into view by the effects of
libration In lunar astronomy, libration is the wagging or wavering of the Moon perceived by Earth-bound observers and caused by changes in their perspective. It permits an observer to see slightly different hemispheres of the surface at different tim ...
, but the terrain is seen from the edge and so not much in the way of detail can be observed. This formation is of significant dimensions in its own right, but it overlies the northeast rim of an even larger basin named Harkhebi. To the west is the crater Vashakidze, and east of Fabry is the small
Petrie Petrie is a surname of Scottish origin which may refer to: People * Alexander Petrie (minister), Alexander Petrie (died 1662), Scottish minister * Alistair Petrie (born 1970), English actor * Andrew Petrie (1798–1872), Scottish-born builder, arc ...
. Northwards lies Swann. The outer rim of Fabry is heavily worn and eroded, with notches from subsequent impacts. A pair of small craters, including Fabry H, lies along the eastern rim. Smaller craters lie along many parts of this remaining rim, most notably a small crater across the southern rim, and a short, hook-shaped valley cutting across the northwest rim. Only a few sections of the rim remain relatively intact, while the remainder is merely a ring of mountainous terrain. Sections of the interior floor are relatively smooth and level, but the surface is rough and irregular in the northeast quadrant. There is a central peak formed from a long
massif In geology, a massif ( or ) is a section of a planet's crust that is demarcated by faults or flexures. In the movement of the crust, a massif tends to retain its internal structure while being displaced as a whole. The term also refers to a ...
that covers nearly a quarter of the crater diameter from west to east. At the southeast end of this formation is a small crater, located just to the southeast of the midpoint. The remainder of the floor has been resurfaced, and now is marked only by tiny craterlets and the rough ground along the edge of the rim. Ray material from the young crater
Giordano Bruno Giordano Bruno (; ; la, Iordanus Brunus Nolanus; born Filippo Bruno, January or February 1548 – 17 February 1600) was an Italian philosopher, mathematician, poet, cosmological theorist, and Hermetic occultist. He is known for his cosmologic ...
to the south carries across the floor of Harkhebi, and lies in a few faint patches on the floor of Fabry. This is most notable in the southern part of the crater to the south of the small crater near the midpoint. Prior to formal naming in 1970 by the
IAU The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach ...
, this crater was known as ''Crater 45''.Lunar Farside Chart (LFC-1A)
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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 Fabry.


References

* * * * * * * * * * * * Impact craters on the Moon {{Craters on the Moon: C-F