Picard Crater ( Latin Picard ) is a small young impact crater in the southwestern part of the Sea of Crises on the visible side of the Moon . The name was given in honor of the French astronomer Jean Picard (1620–1682) and approved by the International Astronomical Union in 1935. The formation of the crater dates back to the Eratosthenes period [1] .
| Picard | |
|---|---|
| lat Picard | |
 Shot of the Lunar Reconnaissance Orbiter probe. | |
| Characteristics | |
| Diameter | 22.4 km |
| Deepest | 2320 m |
| Title | |
| Eponym | Jean Picard (1620–1682) is a French astronomer. |
| Location | |
| Heavenly body | Moon |
Content
- 1 Crater Description
- 2 Short-term lunar phenomena
- 3 Satellite craters
- 4 Gallery
- 5 See also
- 6 notes
- 7 References
Crater Description
The closest neighbors of the crater are the Yerkes Crater in the west; Crater Pier in the north-north-west; Eckert Crater in the northeast; Curtis Crater in the northeast and Greaves Crater in the southwest. In the west-north-west of the crater is the Oppel Range ; in the southeast of the Terme ridge [2] . The selenographic coordinates of the center of the crater are , diameter 22.4 km [3] , depth 2320 m [4] .
Picard Crater has a circular shape, slightly elongated in the eastern part and with a small protrusion in the western part. A shaft with a clearly defined edge and a massive external slope, an internal slope of a terrace-like structure. The shaft height above the surrounding area reaches 910 m [5] , the volume of the crater is approximately 300 km³ [1] . The bottom of the bowl is crossed, with a small hill in the center. The crater shaft has a brightness of 5 ½ ° according to the Schröter brightness table .
According to morphological characteristics, the crater belongs to the TRI type (according to the name of a typical representative of this class - the Trisnekker crater). Picard Crater is one of the craters in which temperature anomalies are recorded during eclipses . This is explained by the fact that such craters are small in age and the rocks did not have time to become covered with regolith , which has a thermally insulating effect.
Short Moon Phenomena
Short-term lunar phenomena (CL) in the form of darkening of the surface were observed in the Picard crater.
Satellite Craters
| Picard | Coordinates | Diameter, km |
|---|---|---|
| K | 8.6 | |
| L | 7.4 | |
| M | 8.2 | |
| N | 19.1 | |
| P | 7.9 | |
| Y | 4.3 |
The following satellite craters are renamed by the International Astronomical Union:
- The satellite crater Picard G in 1973 was renamed Tebbat Crater.
- The Picter H satellite crater was renamed the Shapley crater in 1973.
- The satellite crater Picard X in 1976 was renamed the Fahrenheit Crater.
- The Picter Z satellite crater was renamed Curtis Crater in 1973.
Gallery
A shot of the crater from the side of Apollo 17 .
See also
- List of Craters on the Moon
- Lunar crater
- Morphological catalog of Moon Craters
- Planetary nomenclature
- Selenography
- Mineralogy of the Moon
- Geology of the moon
- Late heavy bombardment
Notes
- ↑ 1 2 Lunar Impact Crater Database . Losiak A., Kohout T., O'Sulllivan K., Thaisen K., Weider S. (Lunar and Planetary Institute, Lunar Exploration Intern Program, 2009); updated by Öhman T. in 2011. Archived page .
- ↑ Picard Crater on the LAC-62 map
- ↑ Handbook of the International Astronomical Union
- ↑ John E. Westfall's Atlas of the Lunar Terminator, Cambridge Univ. Press (2000)
- ↑ Crater description on The Moon-Wiki.
Links
- Digital photographic atlas of the moon.
- Pictures of the crater from the side of Apollo-10, Apollo-11, Apollo-15, Apollo-17.
- Picard Crater on the LAC-62 map.
- Selenological map of the vicinity of the crater.
- Picard Crater on the LAC-62 map.
- Topographic map of the vicinity of the crater.
- Andersson, LE, and EA Whitaker, NASA Catalog of Lunar Nomenclature, NASA Reference Publication 1097, October 1982.