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Messier Number:
M20
NGC Number:
NGC 6514
Common Name:
The Trifid Nebulae
Constellation:
Sagittarus
Distance from Earth:
2000 - 9000 light years
Visual Magnitude:
6.3
Size:
20'
Rate:
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Description:
The Trifid Nebula (catalogued as Messier 20 or M20 and as NGC
6514) is an H II region located in Sagittarius. Its name means 'divided into
three lobes'. The object is an unusual combination of an open cluster of stars,
an emission nebula (the lower, red portion), a reflection nebula (the upper,
blue portion) and a dark nebula (the apparent 'gaps' within the emission nebula
that cause the trifid appearance; these are also designated Barnard 85).
Viewed through a small telescope, the Trifid Nebula is a bright and colorful
object, and is thus a perennial favorite of amateur astronomers.(Wikipedia)
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Date Taken:
8 May 2008
Location:
Belgium - Biesmerée
Weather:
Temp = +/-5°C
Equipment:
Skywatcher HEq5 Pro
Skywatcher Mak150
Celestron Focal Reducer f6.3
Autoguided with:
Etx70 / Webcam / GuideDog
Images aquired with:
Canon 350D unfiltred
Exposure Specs:
Lights: 9x180 sec @ 800ISO
Darks: 10x180 sec
Flats: 15
Offsets: 46
Total
Exposure: 27min
Processed with:
Deepskystacker
Adobe Photoshop CS 2
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