Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  Cigar Galaxy  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034  ·  NGC 3077  ·  The star 24UMa
Getting plate-solving status, please wait...
61 hrs M81 & M82 Widefield under camera lens, 



    
        

            Pleiades Astrophotography Team
61 hrs M81 & M82 Widefield under camera lens
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61 hrs M81 & M82 Widefield under camera lens

Technical card

Imaging telescopes or lenses: Sigma 180 mm F2,8 EX APO Macro OS HSM

Imaging cameras: QHYCCD QHY183M

Mounts: Sky-Watcher NEQ6

Software: Pixinsight

Filters: Optolong B 36mm  ·  Optolong G 36mm  ·  Optolong R 36mm  ·  Optolong Ha 36mm 7nm


Frames:
Optolong B 36mm: 219x300" -30C bin 1x1
Optolong G 36mm: 195x300" -30C bin 1x1
Optolong Ha 36mm 7nm: 105x300" -30C bin 1x1
Optolong R 36mm: 217x300" -30C bin 1x1

Integration: 61.3 hours

Bortle Dark-Sky Scale: 3.00


Basic astrometry details

Astrometry.net job: 3405886

RA center: 9h 55' 12"

DEC center: +69° 20' 6"

Pixel scale: 2.845 arcsec/pixel

Orientation: 188.998 degrees

Field radius: 2.311 degrees


Resolution: 4950x3115

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

I finally got this!
This beautiful area took me about 3 months to capture. I start the whole session in January.
I have never reached such a long exposure time before! You can see that a lot of IFN are shown in this image. I think this image is the upper limit of my system. The aperture of the camera lens is too small(180mm F2.8, approximately 65mm aperture).

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61 hrs M81 & M82 Widefield under camera lens, 



    
        

            Pleiades Astrophotography Team

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Camera Lens Astrophotography