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IC1805 / Heart Nebula

Classification: Emission Nebula / Sh2-190
Constellation: Cassiopeia (Cas)
Object Location: Ra 02h 33m 54s Dec +61° 31’27° (current)
Size & Distance: 60 x 60 Apx 6500 to 7500 light-years.

Date & Location: 09-19-2009 Palomar Mountain, CA
Exposure: HaRGB Ha= 4 @ 20min. (bin 1x1) RGB 4 ea. @ 10min. (bin 2x2)
Optics: Takahashi FSQ85ED f3.8 323mm.
Mount: Astro-Physics 900 GTO / ATS 10x36 pier
Camera: SBIG-ST10XME / Guided by TEC-APO140 w/SBIG-RGH
Filters: Astrodon 5nm Ha, G2 RGB
Software: MaxImDL 4.56, Photoshop CS

Notes: Sky conditions: Average seeing, calm winds, Mid 60’s
Image Field of view is 106 x 157 arc-min.

The Heart Nebula, IC 1805, Sh2-190, lies some 7500 light years away from Earth and is located in the constellation Cassiopeia. This is an emission nebula showing glowing gas and darker dust lanes..
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. 

This complex is the western neighbor of IC1848 (Soul Nebula) and the two are often mentioned together as the "Heart and Soul".