Lunar Eclipse: Winter Solstice 2010. Tom Blackwell (Flickr)
Wheel in a Wheel (HUB) "A Matter of Time"
Wednesday, October 8, 2014
Wednesday's Total Lunar Eclipse a Rare 'Selenelion'
Wednesday's Total Lunar Eclipse a Rare 'Selenelion'During a lunar eclipse, the sun and moon are exactly 180° apart in the sky. This perfect alignment is called a “syzygy” and observing both would seem impossible. But due to Earth’s atmosphere, both the image of the sun and moon are projected above the horizon by atmospheric refraction, allowing us to see the sun minutes before it actually rises and the moon minutes after it actually sets.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment