6.4.15

Astronomy picture of the day - 06-04-2015 - Serene Paraselene

See Explanation.  Clicking on the picture will download
 the highest resolution version available.
Serene Paraselene 
Image Credit & CopyrightTamas Ladanyi (TWAN)
Explanation: Nestled in the Austrian Alps, frozen Lake Ossiach stretches across the foreground of this serene view. Recorded on March 1, the night sky includes a nearly full Moon and bright planet Saturn seen through thin clouds near picture center. It also includes a remarkably bright and colorful moondog or paraselene at the left. Analogous to a sundog or parhelion, the paraselene is produced by moonlight shining through thin, hexagonal-shaped ice crystals in high cirrus clouds. As determined by the ice crystal geometry, the Moon is 22 degrees from the lovely paraselene.

Aucun commentaire: