Petit
Contents
Petit
(formerly [/Apollonius Apollonius] W)Table of Contents
[#Petit Petit]
[#Petit-Images Images]
[#Petit-Maps Maps]
[#Petit-Description Description]
[#Petit-Description: Elger Description: Elger]
[#Petit-Description: Wikipedia Description: Wikipedia]
[#Petit-Additional Information Additional Information]
[#Petit-Nomenclature Nomenclature]
[#Petit-LPOD Articles LPOD Articles]
[#Petit-Bibliography Bibliography]
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Lat: 2.3°N, Long: 63.5°E, Diam: 5 km, Depth: 1.07 km, [/R%C3%BCkl%2038 Rükl 38], [/Stratigraphy Copernican] |
AS17-M-2382 Petit is the crater surrounded by bright ejecta in the center of this frame, the fluted crater to its upper right is [/Townley Townley]. North is roughly to the right in this view.
Images
LPOD Photo Gallery Lunar Orbiter Images Apollo Images
- Lunar Orbiter 1 frame 1029 (med) shows Apollonius W (Petit) near the photograph's right margin.
- Apollo 10's color-Hasselblad frames AS10-34-5128, 5129, and 5130 show oblique close ups of Petit and its system of rays.
- Raycrater Petit and its bright ejectablanket were also captured on Apollo 16's oblique northward-looking orbital ITEK-panoramic frames AS16-P-5168 and AS16-P-5173. On both frames, bright Petit is located near the right margin, with dark-floored Townley rightward of it.
- Apollo 17's orbital ITEK-panoramic frames AS17-P-2907 and AS17-P-2912 show wonderful near-vertical close ups of Petit and its high-albedo inner slopes (scroll to the centre of both frames, can't miss Petit!).
- The coordinates mentioned below Apollo 10's Hasselblad photograph AS10-33-4895 are totally wrong. This photograph shows Petit, which is NOT located south of the moon's equator!
- Apollo 10's Hasselblads AS10-29-4244 and 4245 also show oblique looks at Petit and its system of rays (it's certainly not Mare Crisium, as mentioned in the captions of both frames).
- Research Lunar Orbiter 1, Apollo 10, Apollo 16, and Apollo 17 photography: Danny Caes
Maps
([/LAC%20zone LAC zone] 62C4) USGS Digital Atlas PDF LAC map Geologic map LM map LTO map
Description
A small, fresh bowl-shaped crater just outside the rim of a much larger (12x16 km), but unnamed, elliptically-shaped crater of similar depth to its northeast. Petit is covered by bright ejecta which produce a small ray system extending onto the floor of nearby [/Mare%20Spumans Mare Spumans]. It is very bright at high sun angles. Petit may be the result of an oblique impact. - JimMosher JimMosher
Description: Elger
Among the hills S. of [/Apollonius Apollonius], there is a small bright streak system. (probable reference to ejecta around Petit)
Description: Wikipedia
Additional Information
- Depth data from [/Kurt%20Fisher%20crater%20depths Kurt Fisher database]
- Westfall, 2000: 1.07 km
- the depth indicated on LTO 62C4 is 0.97 km. - JimMosher JimMosher
Nomenclature
- Alexis Thérèse Petit (October 2, 1791 - June 21, 1820) was a French physicist. Petit is known for his work on the efficiencies of air- and steam-engines, published in 1818.
- The present name was introduced on LTO 62C4 (published in August, 1974) and approved by the [/IAU IAU] in 1976. The former name, [/Apollonius Apollonius] W, could not be used on the LTO because the IAU had banned the use of lettered names on lunar maps in 1973.
- Perhaps we could also add Frederic Petit (1810-1865, French astronomer) who discovered "a second moon of Earth" in 1846.
- Not to be confused with [/Pettit Pettit]
LPOD Articles
Petit Spectacular
Four with one shot (Howard Eskildsen's Concentric Craters, plus Petit).
Bibliography
A Portfolio of Lunar Drawings (Harold Hill), page 25 (Mare Spumans).
This page has been edited 1 times. The last modification was made by - tychocrater tychocrater on Jun 13, 2009 3:24 pm - afx3u2
