Poncelet (crater)
Encyclopedia
Poncelet is the remains of a lunar
crater
that is located near the northern limb of the Moon
. It lies to the east-northeast of the crater Pascal
and northwest of Anaximenes
. Like the latter formation, Poncelet is a worn, eroded formation with an interior that has been flooded, either with lava
or possibly ejecta. The outer rim is a low, circular ridge with a narrow break to the south and a wider breach to the northeast. The interior floor is pock-marked with many tiny craterlets, the most notable of which is Poncelet H, located just to the southeast of the mid-point.
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...
that is located near the northern limb 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 east-northeast of the crater Pascal
Pascal (crater)
Pascal is a lunar crater that lies near the northern limb of the Moon, on the western side of the pole. It is located to the north of the eroded crater Desargues, and just east of Brianchon. Pascal can be located by finding the crater Carpenter and then following the surface to the northwest...
and northwest of Anaximenes
Anaximenes (crater)
Anaximenes is a low-rimmed lunar crater that is located near the north-northwest limb of the Moon. It lies to the west of the crater Philolaus, and northeast of Carpenter. To the northwest is Poncelet, close to the visible edge of the Moon....
. Like the latter formation, Poncelet is a worn, eroded formation with an interior that has been flooded, either with lava
Lava
Lava refers both to molten rock expelled by a volcano during an eruption and the resulting rock after solidification and cooling. This molten rock is formed in the interior of some planets, including Earth, and some of their satellites. When first erupted from a volcanic vent, lava is a liquid at...
or possibly ejecta. The outer rim is a low, circular ridge with a narrow break to the south and a wider breach to the northeast. The interior floor is pock-marked with many tiny craterlets, the most notable of which is Poncelet H, located just to the southeast of the mid-point.
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Poncelet.| Poncelet | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 79.5° N | 74.7° W | 31 km |
| B | 78.6° N | 62.3° W | 32 km |
| C | 77.4° N | 73.7° W | 67 km |
| D | 77.7° N | 70.0° W | 23 km |
| H | 75.7° N | 55.2° W | 7 km |
| P | 80.6° N | 61.1° W | 15 km |
| Q | 79.9° N | 59.9° W | 14 km |
| R | 79.3° N | 57.3° W | 10 km |
| S | 78.7° N | 56.2° W | 10 km |