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Астронет: Астрономическая картинка дня Радужная облачная шапка над Эфиопией http://variable-stars.ru/db/msg/1253425/eng |
Credit & Copyright: Esther Havens
(Light the World)
Explanation:
Yes, but how many dark clouds have a multicolored lining?
Pictured, behind this darker cloud, is a
pileus
iridescent cloud, a group of water droplets that have a uniformly similar size
and
so together
diffract
different colors of sunlight by different amounts.
The
above image was taken just
after the
picturesque sight
was noticed by chance by a photographer in
Ethiopia.
A more detailed
picture of the same cloud shows not only
many colors, but unusual dark and wavy bands whose origins are thought
related to
wave disturbances
in the cloud.
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.