{{Short description|Mountain on the Moon}} {{Infobox mountain | name = Mons Hadley Delta | image = Mons Hadley Delta AS15-M-1423.jpg | image_caption = Mons Hadley Delta from orbit, facing east, with the Apollo 15 landing site at left | elevation = 8789 m (summit)<ref>[https://www.lpi.usra.edu/resources/mapcatalog/LTO/lto41b4_2/ LTO-41B4 Hadley] — [https://www.lpi.usra.edu/ L&PI] Lunar Topographic Orthophotomap</ref> | listing = [[List of mountains on the Moon|Lunar mountains]] | location = the [[Moon]] | coordinates = {{Lunar coords and quad cat|25.72|N|3.71|E}}<ref>{{gpn|3984|Mons Hadley Delta}}</ref> | type = | age = }}
'''Mons Hadley Delta''' (δ) is a [[massif]] in the northern portion of the [[Montes Apenninus]], a range in the northern hemisphere of the [[Moon]] adjacent to [[Mare Imbrium]]. It has a height of 3.6 km above the plains to the north and west. [[File:Apollo 15 Mt. Hadley Delta.jpg|thumb|right|Mons Hadley Delta and St. George crater taken by Dave Scott during stand-up EVA of the [[Apollo 15]] expedition on July 30, 1971]] To the north of this mountain is a [[Hadley–Apennine (Moon)|valley]] that served as the landing site for the [[Apollo 15]] expedition. To the northeast of this same valley is the slightly larger [[Mons Hadley]] peak with a height of about 4.6 km. To the west of these peaks is the sinuous Rima Hadley [[rille]].
These features were named after the English mathematician and inventor of the [[Octant (instrument)|octant]] [[John Hadley]].<ref>{{gpn|3983|Mons Hadley}}</ref>
On the [[Apollo 15]] mission in 1971, the astronauts [[David Scott]] and [[James Irwin]] explored the lower reaches of the north slope of Mons Hadley Delta, and collected many samples which were returned to earth. Station 2 was near [[St. George (crater)|St. George]] crater, and Stations 6, 6A, and 7 were at or near [[Spur (lunar crater)|Spur]] crater. They found the famous "[[Genesis Rock]]", sample 15415, at Spur. A clast of [[anorthosite]] within this rock is likely to be a piece of the primordial lunar crust.
== See also ==
* [[List of mountains on the Moon]]
==References== {{reflist}} {{refbegin}} * {{cite book | last1 = Andersson | first1 = L. E. | last2 = Whitaker | first2 = E. A. | author-link2 = Ewen Whitaker | year = 1982 | title = [[NASA]] Catalogue of Lunar Nomenclature | publisher = NASA RP-1097 }} * {{cite book | last1 = Bussey | first1 = B. | author-link1 = Ben Bussey | last2 = Spudis | first2 = P. | author-link2 = Paul Spudis | year = 2004 | title = The Clementine Atlas of the Moon | publisher = [[Cambridge University Press]] | location = New York | isbn = 978-0-521-81528-4 }} * {{cite book | last1 = Cocks | first1 = Elijah E. | last2 = Cocks | first2 = Josiah C. | year = 1995 | title = Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature | publisher = Tudor Publishers | isbn = 978-0-936389-27-1 | url = https://archive.org/details/isbn_9780936389271 }} * {{cite web | last = McDowell | first = Jonathan | date = July 15, 2007 | url = http://host.planet4589.org/astro/lunar/ | title = Lunar Nomenclature | publisher = [[Jonathan's Space Report]] | access-date = 2007-10-24 | archive-date = 2012-02-08 | archive-url = https://web.archive.org/web/20120208141804/http://host.planet4589.org/astro/lunar/ | url-status = dead }} * {{cite journal| last1 = Menzel| first1 = D. H.| last2 = Minnaert| first2 = M.| last3 = Levin| first3 = B.| last4 = Dollfus| first4 = A.| last5 = Bell| first5 = B.| title = Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU| doi = 10.1007/BF00171763| journal = Space Science Reviews| volume = 12| issue = 2| pages = 136–186| year = 1971| bibcode = 1971SSRv...12..136M| s2cid = 122125855}} * {{cite book | first = Patrick | last = Moore | author-link = Patrick Moore | year = 2001 | title = On the Moon | publisher = Sterling Publishing Co | isbn = 978-0-304-35469-6 | url = https://archive.org/details/patrickmooreonmo00patr }} * {{cite book | first = Fred W. | last = Price | year = 1988 | title = The Moon Observer's Handbook | publisher = Cambridge University Press | isbn = 978-0-521-33500-3 }} * {{cite book | last = Rükl | first = Antonín | author-link = Antonín Rükl | year = 1990 | title = Atlas of the Moon | publisher = [[Kalmbach Books]] | isbn = 978-0-913135-17-4 }} * {{cite book | last = Webb | first = Rev. T. W. | author-link = Thomas William Webb | year = 1962 | title = Celestial Objects for Common Telescopes | edition = 6th revision | publisher = Dover | isbn = 978-0-486-20917-3 | url = https://archive.org/details/celestialobjects00webb }} * {{cite book | first = Ewen A. | last = Whitaker | author-link = Ewen Whitaker | year = 1999 | title = Mapping and Naming the Moon | publisher = Cambridge University Press | isbn = 978-0-521-62248-6 }} * {{cite book | first = Peter T. | last = Wlasuk | year = 2000 | title = Observing the Moon | publisher = Springer | isbn = 978-1-85233-193-1 }} {{refend}}
==External links== {{Commonscat}} * [https://www.lpi.usra.edu/resources/mapcatalog/LTO/lto41b4_2/ LTO-41B4 Hadley] — [https://www.lpi.usra.edu/ L&PI] Lunar Topographic Orthophotomap
[[Category:Mountains on the Moon|Hadley Delta, Mons]]