Ina (crater)

Ina
Ina seen by Lunar Reconnaissance Orbiter. Small crater at lower left is Osama, at upper left ‒ Dag; the biggest hill in right part of Ina is Mons Agnes. Image width is 3.5 km
Coordinates18°40′N 5°18′E / 18.66°N 5.30°E / 18.66; 5.30
Diameter2.9 km × 1.9 km[1]
Depth64 m[1]
EponymLatin female name Ina
The floor of Ina lighted by low Sun (6.6° above the horizon). Image width is 1 km
Mons Agnes: the only named hill inside Ina. Image width is 1 km

Ina is a peculiar small depression ("crater" in IAU nomenclature) on the Moon, in Lacus Felicitatis. It is D-shaped, 2.9 km × 1.9 km wide and 64 m deep (from the deepest point of the bottom to the highest point of the rim).[1]

Ina is remarkable for several dozens low hills with flat or rounded tops and very sharp rounded boundaries, looking like drops of mercury.[1][2] Their surface looks like the usual surface of the Moon while the space between them is very different. Ina is the most prominent of several dozen similar features on the Moon. Their origin is unclear.[3][4][5]

  1. ^ a b c d Cite error: The named reference Garry_2012 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Whitaker_1972 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Blewett_2011 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Blewett_2013 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Thomas_2014 was invoked but never defined (see the help page).