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Астронет: Астрономическая картинка дня Небесный пейзаж в центре Лебедя http://variable-stars.ru/db/msg/1340949/eng |
Credit & Copyright: Paul C. Swift
Explanation:
In cosmic brush strokes
of glowing hydrogen gas, this beautiful
skyscape unfolds across the plane of our
Milky Way Galaxy and
the center of the northern constellation
Cygnus the Swan.
The featured image spans about six degrees.
Bright supergiant star Gamma
Cygni
(Sadr) to the upper left of the image
center lies in the foreground of the complex gas and dust clouds
and
crowded star fields.
Left of Gamma Cygni,
shaped like two luminous wings divided by
a long dark dust lane is IC 1318, whose popular name is understandably the
Butterfly
Nebula.
The more compact, bright nebula at the lower right is NGC 6888,
the Crescent Nebula.
Some distance estimates for Gamma Cygni place it at
around 750 light-years while estimates for IC 1318 and NGC 6888 range
from 2,000 to 5,000 light-years.
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.