Heart Nebula, IC 1805 (Copy)


IC 1805, the Heart Nebula   looks, in whole, like a human heart. This heart is illuminated by light emitted by hydrogen, sulfur, and oxygen gases that is excited by uv light from the nearby open star cluster Melotte 15 in center of the heart. It is in the Hubble palette where Hydrogen is in green, Sulfur is red, and Oxygen is blue. In the center of the nebula the young stars from the open star cluster are eroding away several picturesque dust pillars with their energetic light and winds. The cluster of stars contains a few bright stars nearly 50 times the mass of our Sun, many dim stars only a fraction of the mass of our Sun, and an absent microquasar  that was expelled millions of years ago. The Heart Nebula is located about 7,500 light years away toward the constellation, the mythological Queen of Aethiopia (Cassiopeia).


Optics: 6″ Takahashi FS152 with f6 focal reducer at 900mm
Mount: Software Bisque Paramount MX+
Camera: FLI PL16803
Filters: Astrodon 3nm Ha, Sii, Oiii
Dates/Times: January 2014
Location: Adler Earth and Sky Observatory, Jackson Hole, WY
Exposure Details: Ha(1:1) 30x10min, Sii &Oiii(4:4)=30x10min, total 90 images, 15 hr
Acquisition & Guiding: MaximDL/TheSkyX, Takahashi FSQ85 & SBIG 8300
Processing: MaximDL, Photoshop CC2018