Ctesibius (crater)
Encyclopedia
Ctesibius is a small lunar
impact crater
that is located near the equator, on the far side of the Moon
. It lies between the larger crater Abul Wáfa
to the west and the slightly smaller Heron
to the east.
The outer wall of Ctesibius is wide and sharp-edged, with little erosion. A low ridge is attached to the southern rim, and curves to the south-southeast. At the center of the relatively flat interior is a low ridge. Faint traces of ray material
lies across the western floor and rim from Necho
to the southeast.
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 is located near the equator, 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...
. It lies between the larger crater Abul Wáfa
Abul Wáfa (crater)
Abul Wáfa is an impact crater located near the lunar equator on the far side of the Moon, named after the Persian mathematician and astronomer Abul Wafa. To the east are the crater pair Ctesibius and Heron. In the northeast lies the larger crater King, and to the southwest is Vesalius.The perimeter...
to the west and the slightly smaller Heron
Heron (crater)
Heron is a small lunar impact crater that lies on the far side of the Moon, less than 20 kilometers from the equator. It lies between the slightly larger crater Ctesibius just to the west and Soddy a little farther to the east. Almost directly to the north is the prominent crater King.This...
to the east.
The outer wall of Ctesibius is wide and sharp-edged, with little erosion. A low ridge is attached to the southern rim, and curves to the south-southeast. At the center of the relatively flat interior is a low ridge. Faint traces of ray material
Ray system
A ray system comprises radial streaks of fine ejecta thrown out during the formation of an impact crater, looking a bit like many thin spokes coming from the hub of a wheel. The rays can extend for lengths up to several times the diameter of their originating crater, and are often accompanied by...
lies across the western floor and rim from Necho
Necho (crater)
Necho is a lunar impact crater on the far side of the Moon, and therefore cannot be seen directly from the Earth. It lies to the northeast of the larger crater Langemak, and about a crater diameter to the south-southwest of Bečvář....
to the southeast.