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Contains:  IC 1805
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Heart Nebula - IC1805 - SHO, 


            Thomas Richter
Heart Nebula - IC1805 - SHO

Heart Nebula - IC1805 - SHO

Technical card

Resolution: 3269x2442

Dates:Sept. 11, 2016Sept. 22, 2016Aug. 29, 2017

Baader Ha 2" 7nm: 24x600" -20C bin 1x1
Baader Planetarium O3 1.25" 8.5nm: 23x600" -20C bin 1x1
Baader Planetarium SII 1.25" 8nm: 15x900" -20C bin 1x1

Integration: 11.6 hours

Flats: ~31

Bias: ~100

Avg. Moon age: 12.65 days

Avg. Moon phase: 60.41% job: 1780906

RA center: 38.981 degrees

DEC center: 61.467 degrees

Pixel scale: 1.219 arcsec/pixel

Orientation: 44.256 degrees

Field radius: 0.691 degrees

Locations: Nürnberg, Nürnberg, Bayern, Germany


Object description (

The Heart Nebula, IC 1805, Sharpless 2-190, lies some 7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. This is an emission nebula showing glowing ionized hydrogen gas and darker dust lanes.

The very brightest part of this nebula (the knot at the western edge) is separately classified as NGC 896, because it was the first part of this nebula to be discovered.

The nebula's intense red output and its configuration are driven by the radiation emanating from a small group of stars near the nebula's center. This open cluster of stars known as Melotte 15 contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass.



Thomas Richter
License: None (All rights reserved)


  • Heart Nebula - IC1805 - SHO, 


            Thomas Richter
  • Final
    Heart Nebula - IC1805 - SHO, 


            Thomas Richter


adjusted shadows and highlights, color correction

Sky plot

Sky plot


Heart Nebula - IC1805 - SHO, 


            Thomas Richter