Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  Cigar Galaxy  ·  Coddington's Nebula  ·  IC 2574  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034  ·  The star 22UMa  ·  The star 24UMa  ·  The star 27UMa  ·  The star 38UMa  ·  The star ρUMa  ·  The star σ1UMa  ·  The star σ2UMa
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M81 and M82 and the Integrated Flux Nebula, 



    
        

            Ray Heinle
M81 and M82 and the Integrated Flux Nebula
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M81 and M82 and the Integrated Flux Nebula

Technical card

Imaging telescopes or lenses: Samyang 135mm f/2 ED UMC

Imaging cameras: ZWO ASI071MC Pro

Mounts: iOptron CEM40ec

Software: PixInsight  ·  Deep Sky Stacker  ·  APT

Filters: Baader Planetarium IR UV Cut for front of camera nosepiece


Dates:Dec. 15, 2020

Frames: 22x180"

Integration: 1.1 hours

Avg. Moon age: 0.92 days

Avg. Moon phase: 0.95%


Basic astrometry details

Astrometry.net job: 4094410

RA center: 9h 55' 38"

DEC center: +69° 4' 4"

Pixel scale: 7.596 arcsec/pixel

Orientation: 168.071 degrees

Field radius: 6.262 degrees


Resolution: 4944x3284

Locations: Picketpost Trailhead, Near Superior, AZ, Arizona, United States

Data source: Traveller

Description

This photo shows the M81 and m82 galaxies surrounded by nebulosity called the Integrated Flux Nebula (IFN.) The IFN is made of dust and gas near the edges of the Milky Way. The dust is illuminated by the collected light from the stars in the Milky Way. M81 and M82 are millions of light years away and not really bathed in the IFN.
The Samyang lens was opened up to f2(wide open)

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M81 and M82 and the Integrated Flux Nebula, 



    
        

            Ray Heinle