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The Lagoon Nebula (M8) and Trifid Nebula (M20) | by Martin_Heigan
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The Lagoon Nebula (M8) and Trifid Nebula (M20)

Billions of stars...


Best viewed LARGE.

The image is not at full resolution, but is still best viewed LARGE. Zoom in and out by clicking on the image, or view in Lightbox Mode.


About this image:

A widefield mosaic of M8 and M20. This is a dense region of stars, interstellar dust clouds, and dark nebulae, reflection nebulae and emission nebulae.


The Trifid Nebula (M20)

The Trifid Nebula, a star-forming region in the Scutum spiral arm of the Milky Way Galaxy. The Trifid Nebula (M20, Messier 20 or NGC 6514) is an H II region located in Sagittarius. Trifid means 'divided into three lobes'. The object is an unusual combination of an open cluster of stars; an emission nebula (the red portion), a reflection nebula (the blue portion) and a dark nebula (the apparent 'gaps' within the emission nebula that cause the trifurcated appearance; these are also designated Barnard 85).


The Lagoon Nebula (M8)

The Lagoon Nebula (M8, Messier 8 or NGC 6523), a giant interstellar cloud in the constellation Sagittarius. The Lagoon Nebula is estimated to be between 4000 - 6000 light-years from Earth in the Milky Way Galaxy, and is classified as an emission nebula.


Image Acquisition:

Sequence Generator Pro with the Mosaic and Framing Wizard.


Plate Solving: ANSVR Solver via SGP.



Pre-Processing and Linear workflow in PixInsight,

and finished in Photoshop


Billions of stars...

The size, distance and age of the Universe is far beyond human comprehension. The known Universe is estimated to contain over One Billion Trillion stars (the latest estimates are substantially higher).


"Lost somewhere between immensity and eternity is our tiny planetary home." - Carl Sagan - Cosmos.


Astrometry Info:

View the Annotated Sky Chart for this image.

Center RA, Dec: 270.970, -23.524

Center RA, hms: 18h 03m 52.787s

Center Dec, dms: -23° 31' 24.628"

Size: 3.68 x 2.39 deg

Radius: 2.192 deg

Pixel scale: 6.47 arcsec/pixel

Orientation: Up is 91.7 degrees E of N

View this image in the World Wide Telescope.




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Taken on October 31, 2016