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IC1805 - The Heart Nebula Revisited, Paddy Gilliland

IC1805 - The Heart Nebula Revisited

Getting plate-solving status, please wait...
IC1805 - The Heart Nebula Revisited, Paddy Gilliland

IC1805 - The Heart Nebula Revisited

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Description

I have had a look at this target previously the last time back in Feb 2015 - when I had <6 months processing experience - so with some new data i thought it would be good to revisit and see how i was getting on. This time around I am less interested in supressing the stars, it is a stellar nursery after all. I liked the cluster of small stars that show at the lower right of the nebula which i had previously removed during processing.

Rev B - Applied correct star layer luminance to this version (How it should have been on rev a!)

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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 gas and darker dust lanes. The nebula is formed by plasma of ionized hydrogen and free electrons.

The very brightest part of this nebula (the knot at the right) 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. The cluster used to contain a microquasar that was expelled millions of years ago. - Wikipedia

Comments

Revisions

  • IC1805 - The Heart Nebula Revisited, Paddy Gilliland
    Original
  • Final
    IC1805 - The Heart Nebula Revisited, Paddy Gilliland
    B

Histogram

IC1805 - The Heart Nebula Revisited, Paddy Gilliland