Астронет: Астрономическая картинка дня Ложная Луна http://variable-stars.ru/db/msg/1244341/eng |
Credit & Copyright: Tamas 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.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.