Good Librations

Libration of the Moon

Due to the tilt of the Moon’s orbit, it nods north and south during its circuit around Earth allowing us to see a little more of the Moon’s surface than if didn’t tilt. In this case the maximum nodding, or “libration” corresponded with the first and the last quarter of the Moon. The two photos were combined at three notable craters near the center, Ptolemaeus, Alphonsus, and Arzachel, to show the extent of the Moon’s libraton. Strange how it wobbles and nods as if it has had too much libation!

Published by eskildoodle1

Retired physician with interests in writing, photography, music, and astronomy. I have written multiple stories of life experiences, travel, and astronomy, and have been playing the ukulele for 10 years. My wife Fairy and I travel frequently to the Pacific Islands of Hawaii, and French Polynesia, and I have learned several of their native-language songs. This blog will be a forum to share experiences with family and friends.

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