Hemisphere:  Northern  ·  Constellation: Sagitta (Sge)
The Little Cocoon Nebula (Little Trifid Nebula), Sharpless 2-82 (Sh2-82), 



    
        

            Boris US5WU
The Little Cocoon Nebula (Little Trifid Nebula), Sharpless 2-82 (Sh2-82)
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The Little Cocoon Nebula (Little Trifid Nebula), Sharpless 2-82 (Sh2-82)

The Little Cocoon Nebula (Little Trifid Nebula), Sharpless 2-82 (Sh2-82), 



    
        

            Boris US5WU
The Little Cocoon Nebula (Little Trifid Nebula), Sharpless 2-82 (Sh2-82)
Powered byPixInsight

The Little Cocoon Nebula (Little Trifid Nebula), Sharpless 2-82 (Sh2-82)

Technical card

Imaging telescopes or lenses: Celestron CPC800XLT

Imaging cameras: Starlight Xpress Trius SX-694

Guiding cameras: ZWO ASI120MM

Focal reducers: Starizona SCT Corrector f/7.5

Software: PixInsight  ·  MaximDL  ·  Photoshop CC  ·  StarTools

Filters: Astrodon LRGB CCD Gen II E-Series

Accessory: Starlight Xpress SX mini filter wheel


Frames:
B: 18x600" bin 1x1
G: 18x600" bin 1x1
L: 60x300" bin 1x1
R: 18x600" bin 1x1

Integration: 14.0 hours


Basic astrometry details

Astrometry.net job: 3338643

RA center: 19h 30' 22"

DEC center: +18° 15' 57"

Pixel scale: 0.718 arcsec/pixel

Orientation: 2.777 degrees

Field radius: 0.280 degrees


Resolution: 2198x1742

Locations: Home observatory, Chervonograd, Lvov region, Ukraine

Data source: Backyard

Description

The Little Cocoon Nebula (Little Trifid Nebula), Sharpless 2-82 (Sh2-82) in the constellation Sagitta.
This combination HII region and reflection nebula, also called LBN 129 and DG 159, is ionised by the B0.5V star HD 231616. With the current distance estimate, it appears to be near the Vul OB4 association. Inside the cloud sources of infrared radiation have been identified, including one generated from a protostar deeply shrouded in gas. Radio waves originating from small sources have also been detected, a sign that there are processes of star formation on-going inside the cloud.

This image taken in August 2019.

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The Little Cocoon Nebula (Little Trifid Nebula), Sharpless 2-82 (Sh2-82), 



    
        

            Boris US5WU