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Taken 16-Oct-11
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Dimensions3400 x 1918
Original file size894 KB
Image typeJPEG
Color spaceUncalibrated
M20 & M8

M20 & M8

Other Names: M20:The Trifid Nebula/NGC 6514, M8: The Lagoon Nebula/NGC6523
Optics: Borg Astrograph 101ED at f/4.1
Mount: Atlas EQG using The Sky6 and EQMOD
Camera: Canon EOS 50D [ UV/IR filter modification by Hap Griffin ]
Filters: IDAS Light Pollution Suppression (LPS-V4) Filter
Exposure: 75 Mins [15 x 300s at ISO 800]
Accessories: Auto guided with Borg 45ED and Orion Starshoot Auto guider using PHD
Location: Palm Cove, QLD, Australia
Date: August 18th, 2011
Notes: Processing: Image acquisition with Maxim DSLR. Image calibration, align, and combine in Maxim DSLR. Levels, curves, Noise Ninja, crop and resize in Photoshop.
Calibrated w/40 Darks, 40 Bias, 42 Flats using light box Ambient temperature was +18.0C

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.[3]

The Lagoon Nebula (catalogued as Messier 8 or M8, and as NGC 6523) is a giant interstellar cloud in the constellation Sagittarius. It is classified as an emission nebula and as an H II region.
The Lagoon Nebula was discovered by Guillaume Le Gentil in 1747 and is one of only two star-forming nebulae faintly visible to the naked eye from mid-northern latitudes. Seen with binoculars, it appears as a distinct oval cloudlike patch with a definite core. A fragile star cluster appears superimposed on it.