# Mons Hadley Delta

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Mountain on the Moon

Mons Hadley Delta Mons Hadley Delta from orbit, facing east, with the Apollo 15 landing site at left Highest point Elevation 8789 m (summit)[1] Listing Lunar mountains Coordinates 25°43′N 3°43′E / 25.72°N 3.71°E / 25.72; 3.71[2] Geography Location the Moon

**Mons Hadley Delta** (δ) is a [massif](/source/Massif) in the northern portion of the [Montes Apenninus](/source/Montes_Apenninus), a range in the northern hemisphere of the [Moon](/source/Moon) adjacent to [Mare Imbrium](/source/Mare_Imbrium). It has a height of 3.6 km above the plains to the north and west.

Mons Hadley Delta and St. George crater taken by Dave Scott during stand-up EVA of the [Apollo 15](/source/Apollo_15) expedition on July 30, 1971

To the north of this mountain is a [valley](/source/Hadley%E2%80%93Apennine_(Moon)) that served as the landing site for the [Apollo 15](/source/Apollo_15) expedition. To the northeast of this same valley is the slightly larger [Mons Hadley](/source/Mons_Hadley) peak with a height of about 4.6 km. To the west of these peaks is the sinuous Rima Hadley [rille](/source/Rille).

These features were named after the English mathematician and inventor of the [octant](/source/Octant_(instrument)) [John Hadley](/source/John_Hadley).[3]

On the [Apollo 15](/source/Apollo_15) mission in 1971, the astronauts [David Scott](/source/David_Scott) and [James Irwin](/source/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](/source/St._George_(crater)) crater, and Stations 6, 6A, and 7 were at or near [Spur](/source/Spur_(lunar_crater)) crater. They found the famous "[Genesis Rock](/source/Genesis_Rock)", sample 15415, at Spur. A clast of [anorthosite](/source/Anorthosite) within this rock is likely to be a piece of the primordial lunar crust.

## See also

- [List of mountains on the Moon](/source/List_of_mountains_on_the_Moon)

## References

1. **[^](#cite_ref-1)** [LTO-41B4 Hadley](https://www.lpi.usra.edu/resources/mapcatalog/LTO/lto41b4_2/) — [L&PI](https://www.lpi.usra.edu/) Lunar Topographic Orthophotomap

1. **[^](#cite_ref-2)** ["Mons Hadley Delta"](https://planetarynames.wr.usgs.gov/Feature/3984). *Gazetteer of Planetary Nomenclature*. USGS Astrogeology Research Program.

1. **[^](#cite_ref-3)** ["Mons Hadley"](https://planetarynames.wr.usgs.gov/Feature/3983). *Gazetteer of Planetary Nomenclature*. USGS Astrogeology Research Program.

- Andersson, L. E.; [Whitaker, E. A.](/source/Ewen_Whitaker) (1982). *[NASA](/source/NASA) Catalogue of Lunar Nomenclature*. NASA RP-1097.

- [Bussey, B.](/source/Ben_Bussey); [Spudis, P.](/source/Paul_Spudis) (2004). *The Clementine Atlas of the Moon*. New York: [Cambridge University Press](/source/Cambridge_University_Press). [ISBN](/source/ISBN_(identifier)) [978-0-521-81528-4](https://en.wikipedia.org/wiki/Special:BookSources/978-0-521-81528-4).

- Cocks, Elijah E.; Cocks, Josiah C. (1995). [*Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature*](https://archive.org/details/isbn_9780936389271). Tudor Publishers. [ISBN](/source/ISBN_(identifier)) [978-0-936389-27-1](https://en.wikipedia.org/wiki/Special:BookSources/978-0-936389-27-1).

- McDowell, Jonathan (July 15, 2007). ["Lunar Nomenclature"](https://web.archive.org/web/20120208141804/http://host.planet4589.org/astro/lunar/). [Jonathan's Space Report](/source/Jonathan's_Space_Report). Archived from [the original](http://host.planet4589.org/astro/lunar/) on 2012-02-08. Retrieved 2007-10-24.

- Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". *Space Science Reviews*. **12** (2): 136–186. [Bibcode](/source/Bibcode_(identifier)):[1971SSRv...12..136M](https://ui.adsabs.harvard.edu/abs/1971SSRv...12..136M). [doi](/source/Doi_(identifier)):[10.1007/BF00171763](https://doi.org/10.1007%2FBF00171763). [S2CID](/source/S2CID_(identifier)) [122125855](https://api.semanticscholar.org/CorpusID:122125855).

- [Moore, Patrick](/source/Patrick_Moore) (2001). [*On the Moon*](https://archive.org/details/patrickmooreonmo00patr). Sterling Publishing Co. [ISBN](/source/ISBN_(identifier)) [978-0-304-35469-6](https://en.wikipedia.org/wiki/Special:BookSources/978-0-304-35469-6).

- Price, Fred W. (1988). *The Moon Observer's Handbook*. Cambridge University Press. [ISBN](/source/ISBN_(identifier)) [978-0-521-33500-3](https://en.wikipedia.org/wiki/Special:BookSources/978-0-521-33500-3).

- [Rükl, Antonín](/source/Anton%C3%ADn_R%C3%BCkl) (1990). *Atlas of the Moon*. [Kalmbach Books](/source/Kalmbach_Books). [ISBN](/source/ISBN_(identifier)) [978-0-913135-17-4](https://en.wikipedia.org/wiki/Special:BookSources/978-0-913135-17-4).

- [Webb, Rev. T. W.](/source/Thomas_William_Webb) (1962). [*Celestial Objects for Common Telescopes*](https://archive.org/details/celestialobjects00webb) (6th revision ed.). Dover. [ISBN](/source/ISBN_(identifier)) [978-0-486-20917-3](https://en.wikipedia.org/wiki/Special:BookSources/978-0-486-20917-3). {{[cite book](https://en.wikipedia.org/wiki/Template:Cite_book)}}: ISBN / Date incompatibility ([help](https://en.wikipedia.org/wiki/Help:CS1_errors#invalid_isbn_date))

- [Whitaker, Ewen A.](/source/Ewen_Whitaker) (1999). *Mapping and Naming the Moon*. Cambridge University Press. [ISBN](/source/ISBN_(identifier)) [978-0-521-62248-6](https://en.wikipedia.org/wiki/Special:BookSources/978-0-521-62248-6).

- Wlasuk, Peter T. (2000). *Observing the Moon*. Springer. [ISBN](/source/ISBN_(identifier)) [978-1-85233-193-1](https://en.wikipedia.org/wiki/Special:BookSources/978-1-85233-193-1).

## External links

Wikimedia Commons has media related to [Mons Hadley Delta](https://commons.wikimedia.org/wiki/Category:Mons_Hadley_Delta).

- [LTO-41B4 Hadley](https://www.lpi.usra.edu/resources/mapcatalog/LTO/lto41b4_2/) — [L&PI](https://www.lpi.usra.edu/) Lunar Topographic Orthophotomap

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Adapted from the Wikipedia article [Mons Hadley Delta](https://en.wikipedia.org/wiki/Mons_Hadley_Delta) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Mons_Hadley_Delta?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.