Heart Nebula IC1805

Heart Nebula IC1805 in NARROWBAND

Color channel: R=HA, G=Sii, B=Oiii

Color channel: R=HA, G=Sii, B=Oiii


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. It was discovered by William Herschel on 3 November 1787.[1] This is an emission nebula showing glowing ionized hydrogen gas and darker dust lanes.[2]

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.[1]

Color Channel: R=Sii, G=Ha, B=Oiii (Hubble)

Color Channel: R=Sii, G=Ha, B=Oiii (Hubble)

Location: Astrogazer Observatory

  • Scope: Takahashi FSQ-106ED

  • Camera: Fli ML8300 with CFW2-7 and Astrodon Filters

  • 600 sec subs Narrowband HA, OIII, Sii

  • Sequence Generator Pro- Integration

  • Combined and processed in Pixinsight

  • Taken 11/28/13