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Heart Nebula
The Heart Nebula, IC 1805, is a big emission nebula 7,500 light years away from Earth in the constellation Cassiopeia. It displays glowing red hydrogen gas ionised by the radiation emitted by a group of stars near its centre, an open cluster known as Collinder 26 or Melotte 15. My picture comprises more than 2,600 x 20” exposures at ISO 800, imaged from Colchester, England, on a modified Nikon D750 DSLR with Baader MPCC III coma corrector, Sky-Watcher Explorer 150p on EQ5 Pro, via Stellarmate in Kstars/Ekos. Stacked in AstroPixelProcessor, cropped and adjusted in Photoshop and Lightroom.
© Gary Eason gary@easonmedia.com to license
Picture keywords: astrophotography, back garden astronomy, Cassiopeia, Collinder 26, deep sky object, emission nebula, Heart Nebula, IC 1805, Melotte 15, open cluster, Running Dog Nebula
Published in: Night sky
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