Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  NGC 3031
M81 Lum, 



    
        

            BrianF
M81 Lum
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M81 Lum

Equipment

Imaging Telescopes Or Lenses
Sky-Watcher Esprit 120ED
Imaging Cameras
QHYCCD IMG2Pro M
Mounts
Sky-Watcher EQ6 Pro
Filters
CLS-CCD
Guiding Telescopes Or Lenses
KW Telescopes KWIQ Guider
Guiding Cameras
Orion StarShoot AutoGuider

Acquisition details

Dates:
May 4, 2013
Frames:
9×900(2h 15′)
Integration:
2h 15′
Avg. Moon age:
24.23 days
Avg. Moon phase:
28.52%

Basic astrometry details

Astrometry.net job: 91380

RA center: 09h55m30s.5

DEC center: +69°0444

Pixel scale: 1.543 arcsec/pixel

Orientation: -86.934 degrees

Field radius: 0.369 degrees

Resolution: 620x461

File size: 135.8 KB

Description

Second light with new IMG2Pro. No clouds, but 4Kph winds +/-2.

Used Layer Masking with 5x300Sec images to remove burned out core.

Comments

Revisions

  • Final
    M81 Lum, 



    
        

            BrianF
    Original
  • M81 Lum, 



    
        

            BrianF
    B
  • M81 Lum, 



    
        

            BrianF
    C
  • M81 Lum, 



    
        

            BrianF
    D
  • M81 Lum, 



    
        

            BrianF
    E

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Histogram

M81 Lum, 



    
        

            BrianF