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| eponym = [[Marcus Manilius]] |
| eponym = [[Marcus Manilius]] |
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'''Manilius''' is a [[ |
'''Manilius''' is a [[lunar crater]] on the northeast edge of [[Mare Vaporum]]. No prominent craters are located nearby but its nearest named prominent crater is [[Boscovich (crater)|Boscovich]] lying more than 100 km east-southeast, another is [[Julius Caesar (crater)|Julius Caesar]] which is more than 175 km southeast. The crater are surrounded by small mare plains ("lakes") including Laci [[Lacus Doloris|Doloris]], [[Lacus Gaudii|Gaudii]] and [[Lacus Lenitatis|Lenitatis]]. |
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Its diameter is 39 km long and is 3,100 meters deep. The area is less than 1,100 km² and the perimeter is over 100 km. |
Its diameter is 39 km long and is 3,100 meters deep. The area is less than 1,100 km² and the perimeter is over 100 km. |
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==Description== |
==Description== |
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Manilius has a well-defined rim with a sloping inner surface that runs directly down to the ring-shaped mound of [[scree]] along the base, and a small outer [[wikt:rampart|rampart]]. The small crater interior has a higher [[albedo]] than the surroundings, and it appears bright when the sun is overhead. Within the crater is a central peak formation near the midpoint. |
Manilius has a well-defined rim with a sloping inner surface that runs directly down to the ring-shaped mound of [[scree]] along the base, and a small outer [[wikt:rampart|rampart]]. The small crater interior has a higher [[albedo]] than the surroundings, and it appears bright when the sun is overhead. Within the crater is a central peak formation near the midpoint. |
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The crater also possesses a [[ray system]] that extends for a distance of over 300 kilometers. Despite the presence of these rays, which generally indicate the age of the crater as [[Copernican period|Copernican]], the crater is currently mapped as [[Eratosthenian]] age.<ref>[http://www.imageagain.com/Strata/StratigraphyCraters.2.0.htm Stratigraphy of Lunar Craters], [[Donald Wilhelms|Don E. Wilhelms]] and Charles J. Byrne, January 23, 2009</ref> |
The crater also possesses a [[ray system]] that extends for a distance of over 300 kilometers. Despite the presence of these rays, which generally indicate the age of the crater as [[Copernican period|Copernican]], the crater is currently mapped as [[Eratosthenian]] age.<ref>[http://www.imageagain.com/Strata/StratigraphyCraters.2.0.htm Stratigraphy of Lunar Craters], [[Donald Wilhelms|Don E. Wilhelms]] and Charles J. Byrne, January 23, 2009</ref> |
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Lunar Orbiter 4 image
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Coordinates | 14°30′N 9°06′E / 14.5°N 9.1°E / 14.5; 9.1 |
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Diameter | 39 km |
Depth | 3.1 km |
Colongitude | 351° at sunrise |
Eponym | Marcus Manilius |
Manilius is a lunar crater on the northeast edge of Mare Vaporum. No prominent craters are located nearby but its nearest named prominent crater is Boscovich lying more than 100 km east-southeast, another is Julius Caesar which is more than 175 km southeast. The crater are surrounded by small mare plains ("lakes") including Laci Doloris, Gaudii and Lenitatis.
Its diameter is 39 km long and is 3,100 meters deep. The area is less than 1,100 km² and the perimeter is over 100 km.
Manilius has a well-defined rim with a sloping inner surface that runs directly down to the ring-shaped mound of scree along the base, and a small outer rampart. The small crater interior has a higher albedo than the surroundings, and it appears bright when the sun is overhead. Within the crater is a central peak formation near the midpoint.
The crater also possesses a ray system that extends for a distance of over 300 kilometers. Despite the presence of these rays, which generally indicate the age of the crater as Copernican, the crater is currently mapped as Eratosthenian age.[1]
Manilius is named after the Roman astronomer Marcus Manilius. Like many of the craters on the Moon's near side, it was given its name by Giovanni Riccioli, whose 1651 nomenclature system has become standardized.[2] Earlier lunar cartographers had given the feature different names. Michael van Langren's 1645 map calls it "Isabellae Reg. Hisp." (Isabella, Queen of Spain),[3] and Johannes Hevelius called it "Insula Besbicus" after the island in Turkey now known as İmralı.[4]
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Manilius.
Manilius | Latitude | Longitude | Diameter |
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B | 16.6° N | 7.3° E | 6 km |
C | 12.1° N | 10.4° E | 7 km |
D | 13.2° N | 7.0° E | 5 km |
E | 18.3° N | 6.4° E | 49 km |
G | 15.5° N | 9.7° E | 5 km |
H | 17.8° N | 8.6° E | 3 km |
K | 11.9° N | 11.2° E | 3 km |
T | 13.4° N | 10.6° E | 4 km |
U | 13.8° N | 10.8° E | 4 km |
W | 13.4° N | 12.9° E | 4 km |
X | 14.4° N | 13.4° E | 3 km |
Z | 16.4° N | 11.7° E | 3 km |
The following craters have been renamed by the IAU.
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