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Messier Number:
-
NGC Number:
-
Common Name:
The Cocoon Nebulae
Constellation:
Cygnus
Distance from Earth:
5000 light years
Visual Magnitude:
7.2
Size:
12'
Rate:
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Description:
IC 5146, also Caldwell 19 and the Cocoon Nebula, is a
reflection/emission nebula and Caldwell object in the constellation Cygnus. It
is located near the naked-eye star Pi Cygni, the open cluster NGC 7209 in
Lacerta, and the bright open cluster M39. The cluster is about 4,000 ly
away, and the central star that lights it formed about 100,000 years ago; the
nebula is about 12 arcmins across, which is equavalent to a span of 15
light years. When viewing IC 5146, dark nebula Barnard 168 (B168) is an
inseparable part of the experience, forming a dark lane that surrounds the
cluster and projects westward forming the appearance of a trail behind the
Cocoon. (Wikipedia)
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Date Taken:
29 December 2008
Location:
Italy - Passo Celado (Trento)
Weather:
Temp = -1°C
Equipment:
Skywatcher HEq5 Pro
Skywatcher ED80
Images aquired with:
Canon 350D unfiltred
Exposure Specs:
Lights:
15x60 sec @ 1600ISO
Darks:
6x60 sec @ 1600ISO
Flats:
-
Offsets: 46
Total
Exposure: 9min
Processed with:
Deepskystacker
Adobe Photoshop CS 2
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