Hornsby (crater)
Encyclopedia
Hornsby is a tiny lunar
crater
in the western part of the Mare Serenitatis
, a lunar mare
in the northeast quadrant of the Moon
's near side. It is a solitary formation that is located at least 100 kilometers from any significant craters, although the curiously shaped depression Aratus CA
lies about 50 km to the west-northwest. To the north-northwest is Linné
, a feature notable for its skirt of high-albedo
material. To the west of Hornsby is the wrinkle ridge named Dorsum Von Cotta.
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...
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...
in the western part of the Mare Serenitatis
Mare Serenitatis
Mare Serenitatis is a lunar mare that sits just to the east of Mare Imbrium on the Moon.It is located within the Serenitatis basin, which is of the Nectarian epoch. The material surrounding the mare is of the Lower Imbrian epoch, while the mare material is of the Upper Imbrian epoch...
, a lunar mare
Lunar mare
The lunar maria are large, dark, basaltic plains on Earth's Moon, formed by ancient volcanic eruptions. They were dubbed maria, Latin for "seas", by early astronomers who mistook them for actual seas. They are less reflective than the "highlands" as a result of their iron-rich compositions, and...
in the northeast quadrant 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...
's near side. It is a solitary formation that is located at least 100 kilometers from any significant craters, although the curiously shaped depression Aratus CA
Aratus (crater)
Aratus is a small lunar impact crater located on the highland to the south and east of the rugged Montes Apenninus range. It is a circular, cup-shaped crater with a relatively high albedo. To the east is the Mare Serenitatis, and to the southwest is the somewhat larger crater Conon...
lies about 50 km to the west-northwest. To the north-northwest is Linné
Linné (crater)
Linné is a small lunar impact crater located in the western Mare Serenitatis. The mare around this feature is virtually devoid of other features of interest. The nearest named crater is Banting to the east-southeast....
, a feature notable for its skirt of high-albedo
Albedo
Albedo , or reflection coefficient, is the diffuse reflectivity or reflecting power of a surface. It is defined as the ratio of reflected radiation from the surface to incident radiation upon it...
material. To the west of Hornsby is the wrinkle ridge named Dorsum Von Cotta.