Ellison (crater)
Encyclopedia
Ellison is a lunar
impact crater
that lies on the far side of the Moon
from the Earth
. It is located just beyond the northwest limb of the Moon, to the southwest of the large walled plain Poczobutt
. Due west of Ellison is the crater Coulomb
.
The outer rim of Ellison is roughly circular, with an inward protrusion along the southern rim and a slight outward bulge to the wet-northwest. It has a single terrace on the northeastern inner wall, formed from the slumping of material. Instead of a central peak, there is a small crater located at the mid-point. A smaller crater is located just to the west-southwest of this centrally-located formation, but the flat interior floor is otherwise devoid of features of interest.
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
impact crater
Impact crater
In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...
that lies on the far side of the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
from the Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...
. It is located just beyond the northwest limb of the Moon, to the southwest of the large walled plain Poczobutt
Poczobutt (crater)
Poczobutt is a large lunar impact crater that is located on the far side of the Moon, just beyond the northwestern limb in an area occasionally brought into sight due to libration effects. This is a damaged formation that is partly overlain by several named craters. Across the rim to the...
. Due west of Ellison is the crater Coulomb
Coulomb (crater)
Coulomb is a lunar impact crater that lies behind the northwestern limb, on the far side of the Moon. It is located to the west-southwest of the large crater Poczobutt, and northeast of Sarton....
.
The outer rim of Ellison is roughly circular, with an inward protrusion along the southern rim and a slight outward bulge to the wet-northwest. It has a single terrace on the northeastern inner wall, formed from the slumping of material. Instead of a central peak, there is a small crater located at the mid-point. A smaller crater is located just to the west-southwest of this centrally-located formation, but the flat interior floor is otherwise devoid of features of interest.
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Ellison.| Ellison | Latitude | Longitude | Diameter |
|---|---|---|---|
| P | 52.8° N | 109.6° W | 32 km |