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Contains:  Helix nebula, NGC 7293
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Helix Nebula - NGC 7293 - HaLRGB, 





    
        

            Thomas Richter
Helix Nebula - NGC 7293 - HaLRGB

Helix Nebula - NGC 7293 - HaLRGB

Technical card

Resolution: 5446x3629

Dates:Sept. 21, 2019

Frames:
Baader B 1.25'' CCD Filter: 9x120" (gain: 200.00) -20C bin 1x1
Baader G 1.25'' CCD Filter: 9x120" (gain: 200.00) -20C bin 1x1
Baader Ha 1.25" 7nm: 18x420" (gain: 200.00) -20C bin 1x1
Baader L 1.25'' Filter: 17x120" (gain: 200.00) -20C bin 1x1
Baader R 1.25'' CCD Filter: 9x120" (gain: 200.00) -20C bin 1x1

Integration: 3.6 hours

Darks: ~27

Flats: ~27

Flat darks: ~100

Avg. Moon age: 21.54 days

Avg. Moon phase: 56.49%

Astrometry.net job: 2955263

RA center: 337.416 degrees

DEC center: -20.833 degrees

Pixel scale: 0.493 arcsec/pixel

Orientation: 357.290 degrees

Field radius: 0.448 degrees

Locations: Vockenroth, Neuhof, Bayern, Germany

Data source: Traveller

Description

Object description (wikipedia.org):

The Helix Nebula, also known as NGC 7293, is a planetary nebula (PN) located in the constellation Aquarius. Discovered by Karl Ludwig Harding, probably before 1824, this object is one of the closest to the Earth of all the bright planetary nebulae. The distance, measured by the Gaia mission, is 655±13 light-years. It is similar in appearance to the Cat's Eye Nebula and the Ring Nebula, whose size, age, and physical characteristics are similar to the Dumbbell Nebula, varying only in its relative proximity and the appearance from the equatorial viewing angle. The Helix Nebula has sometimes been referred to as the "Eye of God" in pop culture, as well as the "Eye of Sauron".

Comments

Author

superelch
Thomas Richter
License: None (All rights reserved)
4953
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Revisions

  • Helix Nebula - NGC 7293 - HaLRGB, 





    
        

            Thomas Richter
    Original
  • Helix Nebula - NGC 7293 - HaLRGB, 





    
        

            Thomas Richter
    B
  • Helix Nebula - NGC 7293 - HaLRGB, 





    
        

            Thomas Richter
    C
  • Final
    Helix Nebula - NGC 7293 - HaLRGB, 





    
        

            Thomas Richter
    D

Sky plot

Sky plot

Histogram

Helix Nebula - NGC 7293 - HaLRGB, 





    
        

            Thomas Richter