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Mons Agnes is a hill ("mountain") on the Moon, in Lacus Felicitatis, inside crater-like feature Ina, at 18°40′N 5°20′E / 18.66°N 5.34°E / 18.66; 5.34. It has maximal width of approximately 650 m[1] (the smallest of all named lunar mountains ar for 2014[2]). Its height is more difficult to determine; from Apollo 15 images it was determined as about 30 m,[1] but newer map, based on LRO photos, gives about 10 m.[3]

Mons Agnes
Mons Agnes (Sun at 6.6 deg).png
Mons Agnes. Very low Sun (6.6°) makes the relief well-seen. Width of the photo is 1 km. Image by LRO, 2009.
Highest point
Elevation30 m
ListingLunar mountains
Coordinates18°40′N 5°20′E / 18.66°N 5.34°E / 18.66; 5.34
English translationFeminine name Agnes
Language of nameGreek
Locationthe Moon
Mons Agnes is the biggest hill in right part of crater Ina

Mons Agnes (and all the Ina crater) was discovered on the photos made by Apollo 15 from lunar orbit in 1971.[4] In 1974 NASA published a topophotomap where its name first appeared: it received Greek feminine name Agnes.[1] In 1979 this name (with a term Mons – "mountain") was adopted by International Astronomical Union.[5]

Mons Agnes is one of several dozens of similar hills inside Ina (but one of the largest). Their origin, as for Ina on the whole, remains enigmatic.[6][7]


  1. ^ a b c "Sheet 41C3S1(10) Ina". NASA lunar topophotomap (based on Apollo 15 photos). Scale 1:10,000 (1 ed.). Prepared and published by the Defence Mapping Agency Topographic Center, Washington, D.C. 1974.
  2. ^ "Moon. Mons, montes. Nomenclature search results". International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN). Archived from the original on 2014-11-07. Retrieved 2014-11-07.
  3. ^ Garry, W. B.; Robinson, M. S.; Zimbelman, J. R.; Bleacher, J. E.; et al. (November 2012). "The origin of Ina: Evidence for inflated lava flows on the Moon" (PDF). Journal of Geophysical Research. 117: E00H31. Bibcode:2012JGRE..117.0H31G. doi:10.1029/2011JE003981. (the map from this work)
  4. ^ Whitaker, E.A. (1972). "An unusual mare feature". Apollo 15 Preliminary Science Report (NASA Special Publication 289) (PDF). pp. 25–84–25–85.
  5. ^ "Mons Agnes". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  6. ^ Chan, N. W.; Vaughan, W. M.; Head, J. W. (March 2014). "Lunar Ina-Like Features: Maps and Morphometry" (PDF). 45th Lunar and Planetary Science Conference, held 17–21 March 2014 at The Woodlands, Texas. LPI Contribution No. 1777, p.1001. Bibcode:2014LPI....45.1001C. (poster)
  7. ^ Robinson, M. S.; Thomas, P. C.; Braden, S. E.; Lawrence, S. J.; et al. (March 2010). "High Resolution Imaging of Ina: Morphology, Relative Ages, Formation" (PDF). 41st Lunar and Planetary Science Conference, held March 1–5, 2010 in The Woodlands, Texas. LPI Contribution No. 1533, p.2592. Bibcode:2010LPI....41.2592R.