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Astronomy Picture of the Day
LDN 1622: Dark Nebula in Orion
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#100442
by
[z]Barbara Harris
@
12.05.2007 00:00
- nach oben -
LDN 1622: Dark Nebula in Orion
Explanation:
The silhouette of an intriguing
dark nebula
inhabits this cosmic scene, based on images from the
Palomar
Observatory Sky Survey
.
Lynds' Dark Nebula
(
LDN
) 1622 appears against a faint background
of glowing hydrogen gas only easily seen in long telescopic
exposures of the region.
LDN 1622 lies near the plane of our Milky Way Galaxy,
close
on the sky
to
Barnard's
Loop
- a large cloud surrounding the rich
complex of emission nebulae
found
in the Belt and Sword
of Orion
.
But the obscuring dust of LDN 1622 is thought to be much closer
than Orion's more famous nebulae, perhaps only 500 light-years away.
At that distance, this 1 degree wide field of view
would span less than 10 light-years.
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