Archimedes (Bruce Rohrlach)

Contains: Solar system body or event

Archimedes

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Archimedes

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Archimedes, at 83-km-wide, is the largest impact crater in Mare Imbrium. The interior of the crater does not have a central peak and is flooded with mare basalt.

The crash site of the Russian Luna 2 spacecraft (the first man made object to land on any extra-terrestrial body) on the 13th September 1959 is shown about 80-90 km away from the Archimedes crater. The 58th anniversary of this anthropomorphic impact is in 2 days time.

Another very interesting feature in this image is the Catena Beer (previously known as Fossa Archimedes). A "Catena" is a chain of craters of craterlets, typically formed by the break-up of a meteorite prior to impact. A recent example was the "Catena" caused by comet Shoemaker Levy-9 on Jupiter, although no evidence remains of that particular Catena, many lunar Catena are well preserved and great objects to hunt for. I have managed to image 7 aligned craterlets at Catena Beer. Catena Beer was frequently photographed during the mission of Apollo 15.

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
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Other
Unknown

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