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Contains:  M 21, NGC 6531, Trifid nebula, M 20, NGC 6514
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M20 (Trifid nebula), 





    
        

            neptun
M20 (Trifid nebula)

M20 (Trifid nebula)

Technical card

Imaging telescope or lens:Skywatcher Evostar 120ED

Imaging camera:NIKON d90

Guiding telescope or lens:Skywatcher Evostar 120ED

Guiding camera:Meade DSI II Pro

Software:photoshopDeepSkyStacker

Accessories:Teleskop-Service TS9-OAG off axis guiderTeleskop-Service Flattener 2"

Resolution: 4240x2824

Dates:Aug. 2, 2013

Frames: 12x240"

Integration: 0.8 hours

Avg. Moon age: 25.55 days

Avg. Moon phase: 16.88%

Astrometry.net job: 84741

RA center: 270.535 degrees

DEC center: -23.026 degrees

Pixel scale: 1.239 arcsec/pixel

Orientation: -86.912 degrees

Field radius: 0.876 degrees

Locations: Rozhen National Observatory, Smolyan, Bulgaria

Description

Stack of 12x4 min ISO 1250.

Comments

Author

neptun
neptun
License: Attribution-NonCommercial Creative Commons
3280
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M20 (Trifid nebula), 





    
        

            neptun