Celestial hemisphere:  Northern  ·  Constellation: Gemini (Gem)  ·  Contains:  Gem A  ·  IC 443  ·  The star Propus (ηGem)
Jellyfish Nebula (IC 443) - HOO with RGB stars, 



    
        

            Marco Rapino
Jellyfish Nebula (IC 443) - HOO with RGB stars
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Jellyfish Nebula (IC 443) - HOO with RGB stars

Jellyfish Nebula (IC 443) - HOO with RGB stars, 



    
        

            Marco Rapino
Jellyfish Nebula (IC 443) - HOO with RGB stars
Powered byPixInsight

Jellyfish Nebula (IC 443) - HOO with RGB stars

Acquisition details

Dates:
Jan. 25, 2022 ·  Jan. 26, 2022
Frames:
Astronomik Ha 6nm: 90×300(7h 30′) (gain: 200.00) -15°C bin 1×1
Astronomik OIII 6nm: 230×300(19h 10′) (gain: 200.00) bin 1×1
Integration:
26h 40′
Darks:
30
Flats:
20
Flat darks:
20
Avg. Moon age:
22.60 days
Avg. Moon phase:
45.22%
Bortle Dark-Sky Scale:
6.00
Mean SQM:
19.20
Mean FWHM:
1.80

Basic astrometry details

Astrometry.net job: 5455914

RA center: 06h16m51s.8

DEC center: +22°2840

Pixel scale: 1.371 arcsec/pixel

Orientation: 178.151 degrees

Field radius: 0.782 degrees

Resolution: 2903x2903

File size: 4.5 MB

Locations: Home, Lanciano, Italy

Data source: Backyard

Description

This is my first try at this spectacular nebula in the Gemini constellation.
It's a challenging target from urban skies, especially regarding the OIII signal which is weak and much less predominant compared to the hydrogen emissions.
Nevertheless I like the final result, even though I hope to integrate more data as soon as the weather gets better!

Comments

Revisions

  • Jellyfish Nebula (IC 443) - HOO with RGB stars, 



    
        

            Marco Rapino
    Original
  • Final
    Jellyfish Nebula (IC 443) - HOO with RGB stars, 



    
        

            Marco Rapino
    B

Sky plot

Sky plot

Histogram

Jellyfish Nebula (IC 443) - HOO with RGB stars, 



    
        

            Marco Rapino