Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  NGC 6888  ·  Sh2-105
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Crescent Nebula (NGC6888) close up in Hα/SII/OIII+rgb, 



    
        

            Jose Carballada
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Crescent Nebula (NGC6888) close up in Hα/SII/OIII+rgb

Getting plate-solving status, please wait...
Crescent Nebula (NGC6888) close up in Hα/SII/OIII+rgb, 



    
        

            Jose Carballada
Powered byPixInsight

Crescent Nebula (NGC6888) close up in Hα/SII/OIII+rgb

Acquisition details

Dates:
June 21, 2020 ·  June 22, 2020 ·  June 23, 2020 ·  June 29, 2020 ·  July 18, 2020
Frames:
Astrodon B Gen.2 E-series 36mm: 50×120(1h 40′) (gain: 75.00) -20°C bin 1×1
Astrodon G Gen.2 E-series 36mm: 50×120(1h 40′) (gain: 75.00) -20°C bin 1×1
Astrodon HA 36mm - 5nm: 209×600(34h 50′) (gain: 200.00) -20°C bin 1×1
Astrodon O-III 36mm - 5nm: 105×600(17h 30′) (gain: 183.00) -15°C bin 1×1
Astrodon R Gen.2 E-series 36mm: 50×120(1h 40′) (gain: 75.00) -20°C bin 1×1
Astrodon S-II 36mm - 5nm: 106×600(17h 40′) (gain: 183.00) -15°C bin 1×1
Integration:
75h
Avg. Moon age:
7.92 days
Avg. Moon phase:
15.25%

RA center: 20h12m06s.43

DEC center: +38°2100.3

Pixel scale: 1.007 arcsec/pixel

Orientation: -89.431 degrees

Field radius: 0.408 degrees

More info:Open 

Resolution: 2328x1760

File size: 5.5 MB

Locations: AAS Montsec, Àger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

Crescent Nebula revisited three years later with better equipment, better skies and some more skills.

It's the first presented image after this long period, in part due the COVID in part because the long integration time that I wanted and how short are these summer nights.

It was eleven nights with two rigs resulting on 75 hours of integration time. My longest integration time so far.

Comments

Revisions

  • Crescent Nebula (NGC6888) close up in Hα/SII/OIII+rgb, 



    
        

            Jose Carballada
    Original
  • Crescent Nebula (NGC6888) close up in Hα/SII/OIII+rgb, 



    
        

            Jose Carballada
    B
  • Final
    Crescent Nebula (NGC6888) close up in Hα/SII/OIII+rgb, 



    
        

            Jose Carballada
    C

B

Description: little change on brightness

Uploaded: ...

C

Description: brightness again

Uploaded: ...

Sky plot

Sky plot

Histogram

Crescent Nebula (NGC6888) close up in Hα/SII/OIII+rgb, 



    
        

            Jose Carballada