Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034
Getting plate-solving status, please wait...
Messier 81 - 82 with Integrated Flux Nebula, 



    
        

            Péter Feltóti
Messier 81 - 82 with Integrated Flux Nebula
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Messier 81 - 82 with Integrated Flux Nebula

Getting plate-solving status, please wait...
Messier 81 - 82 with Integrated Flux Nebula, 



    
        

            Péter Feltóti
Messier 81 - 82 with Integrated Flux Nebula
Powered byPixInsight

Messier 81 - 82 with Integrated Flux Nebula

Technical card

Imaging telescopes or lenses: SkyWatcher 200/800 carbon Newton astrograph

Imaging cameras: Canon EOS 600D(a)

Mounts: SkyWatcher NEQ6 PRO belt modified

Guiding telescopes or lenses: SkyWatcher 53 mm mini (for guiding)

Guiding cameras: Mgen guide camera

Focal reducers: Skywatcher F4 coma corrector

Accessory: Lacerta Mgen autoguider


Frames: 459x300" (38h 15') ISO800

Integration: 38h 15'

Bortle Dark-Sky Scale: 4.00


Basic astrometry details

Astrometry.net job: 1926047

RA center: 9h 55' 37"

DEC center: +69° 19' 48"

Pixel scale: 2.317 arcsec/pixel

Orientation: 267.054 degrees

Field radius: 0.773 degrees


Resolution: 2000x1333

Locations: Zselic Starlight Park, Kaposvár, Hungary; Ágasvár, Mátraszentistván, Hungary; Kékes, Kékes-tető, Hungary; Tardos, Tardos, Hungary; Mezőfalva, Mezőfalva, Hungary

Description

This image was my greatest challenge. This is really not obvious how to process an image with this huge dynamic difference. The galaxies are bright, the IFN is extremely faint. I managed to solve it with only one intensity mask on the galaxies. The prize is the noise, but photography is the art of compromises.

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Messier 81 - 82 with Integrated Flux Nebula, 



    
        

            Péter Feltóti