Astronomy Picture of the Day: Saguaro Moon Feature Summary

Type:
Physics in Your World
Title:
Astronomy Picture of the Day: Saguaro Moon
Description:
This Astronomy Picture of the Day shows a full moon, illuminated by reflected sunlight--for more on this image, see Astronomy Picture of the Day: Saguaro Moon. But we can also see the moon by reflected Earthshine, as shown in this APOD of a new moon.

Compare the pattern of the maria (the smooth dark surfaces on the moon) in these images. The moon rotates with the same part facing Earth--is that consistent with what you see? To learn more about this, and about tides in the solid Earth and moon, see this Bad Astronomy post.
Image:
image credit: <a href="http://www.astromeeting.de" target="_blank">Stefan Seip - astromeeting.de</a>; <a href="http://apod.gsfc.nasa.gov/apod/ap070926.html" target="_blank">image source</a>; <a href="http://physicstogo.org/images/features/saguaroMoon_large.jpg" target="_blank">larger image</a>
image credit: Stefan Seip - astromeeting.de; image source; larger image
Image URL:
http://www.compadre.org/Informal/images/features/saguaroMoon_large.jpg
Featured:
April 16, 2010 - May 1, 2010