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Астронет: Астрономическая картинка дня NGC 1055: галактика в прямоугольнике http://variable-stars.ru/db/msg/1244728/eng |
Credit & Copyright:
David Martinez-Delgado (MPIA, IAC), et al.
Explanation:
Big, beautiful spiral galaxy NGC 1055 is a dominant member of
a small galaxy group
a mere 60 million light-years away toward
the intimidating constellation Cetus.
Seen edge-on, the island universe spans about 100,000 light-years,
similar in size to our own Milky Way.
Colorful, spiky stars in this cosmic
portrait of NGC 1055
are in the foreground, well within the Milky Way.
But along with a smattering of more distant background galaxies, the
deep image also reveals a curious box-shaped inner halo extending
far above and below this galaxy's dusty plane.
The halo itself is laced with faint, narrow structures,
and could represent the mixed and spread out
debris from a satellite galaxy
disrupted by
the larger spiral some
10 billion years ago.
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.