Selenelion - extremely rare cosmic sight An extremely rare cosmic sight will accompany the total lunar eclipse on October 8th. For a short window of roughly 2 to 9 minutes observers will have a chance to see both total eclipse of the moon and the rising sun, simultaneously. Space explains: And indeed, during a lunar eclipse, the sun and moon are exactly 180 degrees apart in the sky. In a perfect alignment like this (called a syzygy), such an observation would seem impossible. But thanks to Earths atmosphere, the images of both the sun and moon are apparently lifted above the horizon by atmospheric refraction. This allows people on Earth to see the sun for several extra minutes before it actually has risen and the moon for several extra minutes after it has actually set.
Posted on: Tue, 07 Oct 2014 06:18:03 +0000
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