M20 : The Trifid Nebulae

Photographs by Andy Strappazzon

 

 


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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:

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)

 

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

 

Copyright © 2009, Andy Strappazzon. All rights reserved.