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Contains:  IC 1284, NGC 6589, NGC 6590, NGC 6595
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Sh2-37 closeup, 



    
        

            tommy_nawratil
Sh2-37 closeup
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Sh2-37 closeup

Technical card


Dates:Aug. 24, 2017

Frames: 61x180"

Integration: 3.0 hours

Avg. Moon age: 2.85 days

Avg. Moon phase: 8.92%


Basic astrometry details

Astrometry.net job: 2138590

RA center: 18h 17' 39"

DEC center: -19° 39' 18"

Pixel scale: 1.457 arcsec/pixel

Orientation: 262.076 degrees

Field radius: 0.780 degrees


Resolution: 3072x2331

Locations: Hakos Guest Farm, 100km past Windhoek, Namibia

Data source: Traveller

Description

A closeup of the Sh2-37 complex and its adjacent reflection nebulae. Note the purple hue of Sh2-37, a mixture between red Ha and blue dust components.

The scope was a Boren-Simon GSO Newton I could lend from my friends at the WAA club who build an observatory at Hakos. I spent an Octo focuser and took the GPU corrector to photograph at f/4. The mount was a CGEpro which worked fine but had the strange habit of just stopping tracking at meridian.

LRGBHa 30-9-7-7-8 subframes, each 3min at -20°C zero gain.

Comments

Author

tommy_nawratil
tommy_nawratil
License: None (All rights reserved)
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Revisions

  • Final
    Sh2-37 closeup, 



    
        

            tommy_nawratil
    Original
  • Sh2-37 closeup, 



    
        

            tommy_nawratil
    B

B

Description: annotated version

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Sh2-37 closeup, 



    
        

            tommy_nawratil