Mons Gruithuisen Gamma and Mons Gruithuisen Delta (Bruce Rohrlach)

Contains: Solar system body or event

Mons Gruithuisen Gamma and Mons Gruithuisen Delta

Acquisition type: Lucky imaging

Mons Gruithuisen Gamma and Mons Gruithuisen Delta

Acquisition type: Lucky imaging

An image from 2 weeks back (I have a bit of a backlog on my PC). This view shows the region on the Moon containing two lava domes Mons Gruithuisen Gamma and Delta (centre of field of view), as well as the crater Gruithuisen (left, 16 km diameter). These hills (mons) are the lunar equivalent of earth’s shield volcanoes. They lie near the end of a highland peninsula that extends southwest from the elegant crescent of Sinus Iridum (Bay of Rainbows). These features lie between Oceanus Procellarum and Mare Imbrium.

Mons Gruithuisen Gamma is the Moon’s second largest dome, and contains a 900m diameter crater at the top of the dome. It is the more westerly of the two domes and spans 20 km in diameter, rising to 1200m above the surface. Gruithuisen Delta is a slightly smaller (13 km diameter) dome that stands 1550 m above the lunar surface.

The prominent crater directly east of Mons Gruithuisen Delta is crater Gruithuisen B - approximately half the size of crater Gruithuisen at 9 km in diameter.

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Mons Gruithuisen Gamma and Mons Gruithuisen Delta

Mons Gruithuisen Gamma and Mons Gruithuisen Delta

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Mons Gruithuisen Gamma and Mons Gruithuisen Delta

Mons Gruithuisen Gamma and Mons Gruithuisen Delta

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