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Contains:  IC 342
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IC 342 Galaxy, 



    
        

            star-watcher.ch
IC 342 Galaxy
Powered byPixInsight

Technical card

Imaging telescopes or lenses:Canon EF 400mm f/5.6L USM

Imaging cameras:Canon EOS 70D

Mounts:SkyWatcher Star Adventurer

Guiding telescopes or lenses:Orion Mini 50mm Guide Scope

Guiding cameras:Lacerta MGEN 2

Software:Pleiades Astrophoto PixInsight Adobe Lightroom


Dates:Sept. 7, 2016Sept. 8, 2016Sept. 9, 2016

Frames: 123x180" ISO1600

Integration: 6.2 hours

Darks: ~51

Bias: ~115

Avg. Moon age: 6.50 days

Avg. Moon phase: 40.77%

Bortle Dark-Sky Scale: 6.00

Temperature: 15.00


Basic astrometry details

Astrometry.net job: 3472715

RA center: 3h 46' 50"

DEC center: +68° 5' 20"

Pixel scale: 2.152 arcsec/pixel

Orientation: 2.416 degrees

Field radius: 1.188 degrees


Resolution: 3281x2245

Locations: Derendingen 454m, Solothurn, SO, Switzerland

Description

f/5.6

IC 342 Galaxy:
In the year 1935 IC 342 was declared by Harlow Shapley as the third largest spiral galaxy by angular size, smaller only than the Andromeda Galaxy (M 31) and the Triangulum Galaxy (M 33).

Image A/B: 7. Sep. 2016 (1 session)
40x180" ISO1600 (2h)
21 darks, 39 bias

Image C: 7./8. Sep. 2016 (2 sessions)
62x180" ISO1600 (3.1h)
39 darks, 76 bias

Image D/E: 7./8. Sep. 2016 (2 sessions)
64x180" ISO1600 (3.2h)
33 darks (sorted out 6 darks with distinctly lower temperatures than the others...), 76 bias
I used for the first time SubFrameSelector in PixInsight to sort out bad subs (I'd to fight with clouds...). 64 lights re-processed (total 90 lights from 2 sessions).

Image F: 7./8./9. Sep. 2016 (3 sessions)
110x180" ISO1600 (5.5h)
51 darks, 115 bias

Image G: 7./8./9. Sep. 2016 (3 sessions)
123x180" ISO1600 (6.2h)
51 darks, 115 bias

Comments

Author

star-watcher.ch
star-watcher.ch
License: None (All rights reserved)
8371
Like

Revisions

  • IC 342 Galaxy, 



    
        

            star-watcher.ch
    Original
  • IC 342 Galaxy, 



    
        

            star-watcher.ch
    B
  • IC 342 Galaxy, 



    
        

            star-watcher.ch
    C
  • IC 342 Galaxy, 



    
        

            star-watcher.ch
    D
  • IC 342 Galaxy, 



    
        

            star-watcher.ch
    E
  • IC 342 Galaxy, 



    
        

            star-watcher.ch
    F
  • IC 342 Galaxy, 



    
        

            star-watcher.ch
    G
  • Final
    IC 342 Galaxy, 



    
        

            star-watcher.ch
    H

B

Description: 7. Sep. 2016 (1 session)

C

Description: 7./8. Sep. 2016 (2 sessions)

D

Description: 7./8. Sep. 2016 (2 sessions) - completely new stacked and processed

E

Description: 7./8. Sep. 2016 (2 sessions) - less contrast

G

Description: 7./8./9. Sep. 2016 (3 sessions)

H

Description: More noise reduction

Sky plot

Sky plot

Histogram

IC 342 Galaxy, 



    
        

            star-watcher.ch