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Астронет: Астрономическая картинка дня Петля в Лебеде http://variable-stars.ru/db/msg/1171113/eng |
Credit & Copyright: NASA, HST, WFPC2, Jeff Hester
Explanation:
15,000 years ago a star in the constellation of Cygnus exploded. This picture
shows a portion of a shockwave from this
supernova explosion still expanding
past nearby stars. The collision of this gaseous shockwave with
a stationary gas cloud has heated the gas causing it to
glow in a spectacular array of colors, known as the Cygnus Loop.
This picture was taken with
the Wide Field and Planetary Camera 2 on board the
Hubble Space Telescope.
For more information see the NASA Hubble Space Telescope press release.
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.