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Contains:  NGC 2239, NGC 2244, NGC 2252, Rosette nebula, The star 12Mon
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Rosette Nebula -- SHO from DSW, 


            Miles Zhou
Rosette Nebula -- SHO from DSW
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Rosette Nebula -- SHO from DSW

Technical card

Imaging telescope or lens:Takahashi FSQ-106N

Imaging camera:QSI 683 wsg-8

Mount:Paramount MyT

Software:Adobe Photoshop CCPixInsight for Mac

Filters:HaAstrodon S-iiAstrodon O-iii

Dates:Oct. 21, 2016Oct. 24, 2016Oct. 30, 2016

Ha: 12x1800" -20C bin 1x1
Astrodon O-iii: 16x1800" -20C bin 1x1
Astrodon S-ii: 20x1800" -20C bin 1x1

Integration: 24.0 hours

Avg. Moon age: 24.64 days

Avg. Moon phase: 32.38%

Basic astrometry details job: 1305204

RA center: 6h 32' 7"

DEC center: +4° 57' 57"

Pixel scale: 2.097 arcsec/pixel

Orientation: 0.263 degrees

Field radius: 1.212 degrees

Resolution: 3326x2504

Locations: Deep Sky West, Rowe, New Mexico, United States


My first SHO combination. SHO does faces quite some challenge. H is too strong which generates green color which shall not be present in the final image. This is okay, but the problem is, the stars are no longer neutral. And, what is worse: the stars are much smaller in H than other channels. Well, I did it, the first time, with SHO.

Version B integrated 4 more Ha exposures; noise reduction is not significant, but it seems to have more details.



Miles Zhou
License: None (All rights reserved)


  • Rosette Nebula -- SHO from DSW, 


            Miles Zhou
  • Final
    Rosette Nebula -- SHO from DSW, 


            Miles Zhou

Sky plot

Sky plot


Rosette Nebula -- SHO from DSW, 


            Miles Zhou