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Stardust of the Lagoon Nebula (Messier 8) | by Martin_Heigan
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Stardust of the Lagoon Nebula (Messier 8)

Data captured earlier this year, only processed now as the cloudy weather starts. Experimenting with a different processing technique, and highlighting the dust clouds (consisting mainly of Hydrogen), with star reduction so that the gas and dust stand out.


The Lagoon Nebula (M8, Messier 8 or NGC 6523), is a giant interstellar cloud in the constellation Sagittarius. M8 is estimated to be between 4,000 - 6,000 light-years from Earth in the Milky Way Galaxy, and is classified as an emission nebula.


About Emission nebulae:

Emission nebulae are glowing clouds of interstellar gas which have been excited by some nearby energy source, usually a very hot star. The red light seen in this picture is glowing hydrogen captured in the Hydrogen-Alpha (Hα) Infrared wavelength of light at 656nm.


About this image:

Imaged in Narrowband in the SHO palette (Ha, SII and OIII).


Image Acquisition & Plate Solving:

SGP Mosaic and Framing Wizard.

PlaneWave PlateSolve 2 via SGP.


Integration time:

22 hours.



Pre-Processing and Linear workflow in PixInsight,

and finished in Photoshop.


Photographed in the following wavelengths of light:

OIII line at 500.7nm

H-alpha line at 656nm

SII line at 672nm


Astrometry Info:

Center RA, Dec: 271.120, -24.243

Center RA, hms: 18h 04m 28.736s

Center Dec, dms: -24° 14' 35.817"

Size: 1.63 x 1.19 deg

Radius: 1.011 deg

Pixel scale: 3.67 arcsec/pixel

Orientation: Up is 176 degrees E of N






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Taken on July 2, 2019