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Contains:  M 27, Dumbbell nebula, NGC 6853
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M27, 





    
        

            Tim
M27

M27

Technical card

Resolution: 4015x2742

Dates:July 28, 2019July 30, 2019Aug. 4, 2019Aug. 5, 2019

Frames:
Baader B 1.25": 34x180" (gain: 139.00) -20C bin 1x1
Baader OIII 8.5nm 1.25": 33x300" (gain: 139.00) -20C bin 1x1
Baader G 1.25": 34x180" (gain: 139.00) -20C bin 1x1
Baader Ha 1.25" 7nm: 40x300" (gain: 139.00) -20C bin 1x1
Baader L 1.25": 245x115" (gain: 139.00) -20C bin 1x1
Baader R 1.25": 34x180" (gain: 139.00) -20C bin 1x1

Integration: 19.0 hours

Darks: ~20

Flats: ~20

Flat darks: ~20

Avg. Moon age: 15.53 days

Avg. Moon phase: 15.73%

Astrometry.net job: 2889381

RA center: 299.916 degrees

DEC center: 22.729 degrees

Pixel scale: 0.488 arcsec/pixel

Orientation: 251.863 degrees

Field radius: 0.330 degrees

Data source: Backyard

Description

I was very pleased to finally see some clear weather predicted for our area. However, the smoke indicator showed we would have high level smoke over the entire period. I still wanted to image so I picked a fairly bright object - M27. This was always a favourite of mine when I viewed. It reminded me of the candy floss I would get at the circus. I wasn't sure the best way to image through high level smoke, so, I tried using LRBG as well as Ha and Olll. Over 4 nights I imaged a total of 18.8 hours - more than any other image.

Comments

Author

TimN
Tim
License: Attribution-NonCommercial Creative Commons
1410
Like

Revisions

  • M27, 





    
        

            Tim
    Original
  • Final
    M27, 





    
        

            Tim
    C

C

Took some of the blue/purple from the nebula to make it more natural.

Sky plot

Sky plot

Histogram

M27, 





    
        

            Tim

In these public groups

ZWO ASI1600MM/QHY163M