Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034
M81 & M82, First light Atik314L, 



    
        

            Sören Ottenhof
M81 & M82, First light Atik314L
Powered byPixInsight
M81 & M82, First light Atik314L, 



    
        

            Sören Ottenhof
M81 & M82, First light Atik314L
Powered byPixInsight

Technical card

Imaging telescopes or lenses: William Optics GT-81

Imaging cameras: Atik 314L Mono

Mounts: HEQ5 PRO

Guiding telescopes or lenses: William Optics GT-81

Guiding cameras: Orion StarShoot Autoguider

Focal reducers: William Optics Flat 6A

Software: PixInsight  ·  Adobe Photoshop CS6

Filters: Hutech IDAS LPS-P2 2"


Dates:April 10, 2015

Frames:
12x1200" bin 1x1
Astronomik 12nm Ha Clip-In Filter: 18x300" bin 1x1

Integration: 5.5 hours

Flats: ~21

Bias: ~100

Avg. Moon age: 20.45 days

Avg. Moon phase: 67.64%


Basic astrometry details

Astrometry.net job: 690013

RA center: 9h 55' 50"

DEC center: +69° 24' 21"

Pixel scale: 3.440 arcsec/pixel

Orientation: -90.830 degrees

Field radius: 0.797 degrees


Resolution: 1358x970

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M81 & M82, First light Atik314L, 



    
        

            Sören Ottenhof