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Swift (lunar crater)
Encyclopedia
Swift is a tiny lunar
impact crater
that is located in the northwestern part of the Mare Crisium
, in the northeast part of the Moon
's near side. Within two crater diameters to the south is the larger crater Peirce
. Swift was previously designated Peirce B before being named by the IAU
.
This formation is circular and bowl-shaped, with a small floor at the mid-point of the sloping interior walls. It is a symmetrical crater with little appearance of wear from minor impacts.
This crater has been incorrectly named 'Graham' on some maps.
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 northwestern part of the Mare Crisium
Mare Crisium
Mare Crisium is a lunar mare located in the Moon's Crisium basin, just northeast of Mare Tranquillitatis. This basin is of the Pre-Imbrian period, 4.55 to 3.85 billion years ago. This mare is in diameter, and 176,000 km2 in area. It has a very flat floor, with a ring of wrinkled ridges...
, in the northeast 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...
's near side. Within two crater diameters to the south is the larger crater Peirce
Peirce (crater)
Peirce is a small lunar crater, named in honor of the mathematician Benjamin Peirce, which lies in the western part of Mare Crisium. That dark, circular lunar mare is located in the east-northeasterly part of the Moon's near side. Peirce lies to the north of the craters Yerkes and Picard, and...
. Swift was previously designated Peirce B before being named 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 formation is circular and bowl-shaped, with a small floor at the mid-point of the sloping interior walls. It is a symmetrical crater with little appearance of wear from minor impacts.
This crater has been incorrectly named 'Graham' on some maps.