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Contains:  NGC 1491
Getting plate-solving status, please wait...
NGC 491 - LBN 704 - Sh2-206, 





    
        

            Uwe Deutermann

NGC 491 - LBN 704 - Sh2-206

Technical card

Resolution: 2634x2751

Dates:Oct. 22, 2018Oct. 29, 2018

Frames:
Baader H-Alpha 2" 7nm: 11x600" (gain: 200.00) -15C bin 1x1
Baader H-Alpha 2" 7nm: 24x300" (gain: 200.00) -20C bin 1x1
Baader OIII 2" 8,5nm: 7x600" (gain: 200.00) -15C bin 1x1
Baader OIII 2" 8,5nm: 18x300" (gain: 200.00) -20C bin 1x1
Baader SII 2" 8nm: 7x600" (gain: 200.00) -15C bin 1x1
Baader SII 2" 8nm: 18x300" (gain: 200.00) -20C bin 1x1

Integration: 9.2 hours

Darks: ~50

Flats: ~50

Bias: ~50

Avg. Moon age: 16.19 days

Avg. Moon phase: 84.44%

Bortle Dark-Sky Scale: 6.00

Temperature: 22.50

Astrometry.net job: 2345377

Locations: Home Observatory, Fleming Island, Florida, United States

Data source: Backyard

Description

I worked on this image quite a while, not that easy to process. I will definitely add some more images to it. Looking this object up on the internet does not reveal much, which is unfortunate since it is quite a remarkable nebula.

Comments

Author

udeuterm
Uwe Deutermann
License: Attribution-NonCommercial-ShareAlike Creative Commons
691
Like

Revisions

  • NGC 491 - LBN 704 - Sh2-206, 





    
        

            Uwe Deutermann
    Original
  • Final
    NGC 491 - LBN 704 - Sh2-206, 





    
        

            Uwe Deutermann
    B

B

Added 5 more hours of exposure time. Did not really improve a lot, if at all. I guess I found the limits of my seeing conditions, telescope and processing skills.

Histogram

NGC 491 - LBN 704 - Sh2-206, 





    
        

            Uwe Deutermann