Halley (lunar crater)
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Halley is a
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 ...
that is intruding into the southern wall of the walled plain
Hipparchus Hipparchus (; el, Ἵππαρχος, ''Hipparkhos'';  BC) was a Greek astronomer, geographer, and mathematician. He is considered the founder of trigonometry, but is most famous for his incidental discovery of the precession of the equi ...
. Its diameter is 35 km. The crater is named after the English astronomer
Edmond Halley Edmond (or Edmund) Halley (; – ) was an English astronomer, mathematician and physicist. He was the second Astronomer Royal in Britain, succeeding John Flamsteed in 1720. From an observatory he constructed on Saint Helena in 1676–77, H ...
. On the 1645 map by Michael van Langren, the crater is called ''Gansii'', for the ''gansa'' (a kind of wild swan) of
Francis Godwin Francis Godwin (1562–1633) was an English historian, science fiction author, Anglicanism#Anglican divines, divine, Bishop of Llandaff and Bishop of Hereford, of Hereford. Life He was the son of Thomas Godwin (bishop), Thomas Godwin, Bishop of ...
s ''
The Man in the Moone ''The Man in the Moone'' is a book by the English Divine (noun), divine and Church of England bishop Francis Godwin (1562–1633), describing a "voyage of utopian discovery". Long considered to be one of his early works, it is now generally tho ...
''. To the southwest of Halley is the large crater
Albategnius Abū ʿAbd Allāh Muḥammad ibn Jābir ibn Sinān al-Raqqī al-Ḥarrānī aṣ-Ṣābiʾ al-Battānī ( ar, محمد بن جابر بن سنان البتاني) ( Latinized as Albategnius, Albategni or Albatenius) (c. 858 – 929) was an astron ...
, and due east lies the slightly smaller
Hind A hind is a female deer, especially a red deer. Places * Hind (Sasanian province, 262-484) * Hind and al-Hind, a Persian and Arabic name for the Indian subcontinent * Hind (crater), a lunar impact crater * 1897 Hind, an asteroid Military ...
. The rim of Halley is somewhat worn, the east being scoured by debris from the Imbrium basin, hence forming part of the Imbrium Scultpure. The interior floor of Halley is relatively flat, being filled with material of the same albedo of the surrounding terrain, and is probably melt from the Imbrium impact.


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 Halley.


References


Further reading

* * * * * * * * * * *


External links


Halley at The Moon Wiki

LTO-77C2 Halley
— L&PI
topographic map In modern mapping, a topographic map or topographic sheet is a type of map characterized by large- scale detail and quantitative representation of relief features, usually using contour lines (connecting points of equal elevation), but historic ...


Related article

* {{cite web, last = Wood , first = Chuck , date = May 27, 2007 , url = http://www.lpod.org/?m=20070527 , title = Drawings , publisher = Lunar Photo of the Day , url-status=dead, archive-url=https://web.archive.org/web/20110614233616/http://www.lpod.org/?m=20070527, archive-date=June 14, 2011 Impact craters on the Moon