Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  IC 5068  ·  IC 5070  ·  IC 5076  ·  NGC 6997  ·  NGC 7000  ·  NGC 7031  ·  NGC 7039  ·  North America nebula  ·  Pelican nebula  ·  The star 56Cyg  ·  The star 57Cyg  ·  The star 59Cyg  ·  The star 60Cyg  ·  The star 63Cyg  ·  The star ξCyg
NGC 7000 Revisited, 



    
        

            Jan Curtis
NGC 7000 Revisited
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NGC 7000 Revisited

Acquisition details

Dates:
May 2, 2016 ·  May 3, 2016 ·  May 4, 2016 ·  June 5, 2016
Frames:
113×60(1h 53′) ISO1250
168×60(2h 48′) ISO2000
85×75(1h 46′ 15″) ISO2000
116×60(1h 56′) ISO3200
Integration:
8h 23′ 15″
Avg. Moon age:
19.40 days
Avg. Moon phase:
12.21%
Bortle Dark-Sky Scale:
4.00
Temperature:
2.75

Basic astrometry details

Astrometry.net job: 1107740

RA center: 21h01m58s.8

DEC center: +46°1951

Pixel scale: 4.463 arcsec/pixel

Orientation: -164.562 degrees

Field radius: 5.141 degrees

Resolution: 620x1742

File size: 1000.0 KB

Locations: Home observatory, Cheyenne, WY (elevation: 6014'), United States

Description

Web browser (FIREFOX) tends to saturate reds. If you are interested in downloading my original:

https://www.dropbox.com/s/zxvn0gu9jsjy4he/NGC7000_229B.jpg?dl=0 (of course open in anything other than a browser) to see what I mean. I wasn't aware of this before so perhaps the browser has been modified recently? This may explained why some had thought that ASTROBIN's image quality has worsened since the beginning of the year.

Well, with clear skies, I had to try this DSO favorite again. I mixed relatively low and high ISO with short subs (unguided). I think this new attempt turned out pretty good. Comments welcomed.

Version "B" adds 85 subs. Seems like when I go over 300 subs, the noise level drops considerably.

Version "C" was rotated to the more familiar orientation. However, I have to confess that I have no idea how I post-processed this brighter and more saturated version. :-)

Version "D" is a 2 panel mosaic with the top half redone to better the original image of spherical abberation. My goal is to create a large mosaic of Cygnus during the summer months. This is the first of hopefully many updated.

Comments

Revisions

  • NGC 7000 Revisited, 



    
        

            Jan Curtis
    Original
  • NGC 7000 Revisited, 



    
        

            Jan Curtis
    B
  • NGC 7000 Revisited, 



    
        

            Jan Curtis
    C
  • Final
    NGC 7000 Revisited, 



    
        

            Jan Curtis
    D

Sky plot

Sky plot

Histogram

NGC 7000 Revisited, 



    
        

            Jan Curtis