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Bailly

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description Bailly Overview

Bailly is a massive lunar impact crater located in the southwest region of the Moon's near side. With a diameter of approximately 300 kilometers, it holds the distinction of being the largest impact crater visible from Earth. The crater is of Pre-Nectarian age, meaning it was formed over 3.9 billion years ago, resulting in a highly eroded and degraded rim. Its broad, uneven floor is heavily marked by subsequent impacts and contains no central peak.

help Bailly FAQ

Where is Bailly crater on the Moon?

Bailly lies on the Moon's southwest near side. Its position makes it visible from Earth under favorable lunar libration.

How large is Bailly crater?

Bailly is approximately 300 kilometers in diameter. It is one of the largest impact structures on the Moon's near side.

Can Bailly crater be seen from Earth?

Yes, Bailly is the largest lunar crater commonly described as visible from Earth. It is near the southwest limb, so its appearance changes with lunar libration.

How old is Bailly crater?

Bailly is classified as Pre-Nectarian in age. That means it formed during one of the Moon's oldest geological eras and has been heavily degraded.

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