.gif)
Townley (crater)
Encyclopedia
Townley is a small lunar
impact crater
that is located in the eastern part of the Moon
. It lies to the northwest of Mare Spumans
and southeast of the crater Apollonius
. This crater was designated Apollonius G before being assigned a name by the IAU
.
This crater is generally circular, with inner wall that slopes down to a relatively dark floor that is generally flat. The albedo
of this floor is similar to the lunar mare
to the southeast. The rim is not significantly worn or eroded, although there is a crater-like notch along the southeast rim. A small crater is attached to the northern rim, and several tiny craters lie near the southwest side.
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 in the eastern part 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 to the northwest of Mare Spumans
Mare Spumans
Mare Spumans is a lunar mare located just south of Mare Undarum on the lunar near side. It is one of the many elevated lakes contained in the Crisium basin, surrounding Mare Crisium. The surrounding basin material is of the Nectarian epoch, while the mare basalt being of the Upper Imbrian epoch...
and southeast of the crater Apollonius
Apollonius (crater)
Apollonius is a lunar crater located near the eastern limb of the Moon. It lies in the region of uplands to the west of Mare Undarum and northeast of the Sinus Successus on the Mare Fecunditatis...
. This crater was designated Apollonius G before being assigned a name by the IAU
International Astronomical Union
The International Astronomical Union IAU is a collection of professional astronomers, at the Ph.D. level and beyond, active in professional research and education in astronomy...
.
This crater is generally circular, with inner wall that slopes down to a relatively dark floor that is generally flat. The 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...
of this floor is similar to the 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...
to the southeast. The rim is not significantly worn or eroded, although there is a crater-like notch along the southeast rim. A small crater is attached to the northern rim, and several tiny craters lie near the southwest side.