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Астронет: Астрономическая картинка дня Спиральная галактика NGC 6744 http://variable-stars.ru/db/msg/1563346/eng |
Credit & Copyright: Zhuokai Liu,
Jiang Yuhang
Explanation:
Beautiful spiral galaxy NGC 6744
is nearly 175,000 light-years across, larger than
our own Milky Way.
It lies some 30 million light-years distant in the southern
constellation Pavo and appears as only a faint, extended object in
small telescopes.
We see the disk of the nearby island universe tilted towards our
line of sight in this remarkably detailed galaxy portrait,
a telescopic view that spans an area about the
angular size of a full moon.
In it, the giant galaxy's elongated yellowish core is dominated by
the light from old, cool stars.
Beyond the core, grand spiral arms are filled with
young blue star clusters and speckled with pinkish star forming regions.
An extended arm sweeps past a smaller satellite galaxy (NGC 6744A)
at the lower right.
NGC 6744's galactic companion is reminiscent of the Milky Way's
satellite galaxy the Large Magellanic 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.