IC1805: Heart Nebula in Cassiopeia


IC 1805: Heart Nebula

Object Data

Object type: Emission Nebula
Size: radius: 165 light years
Magnitude: 6.5
Constellation: Cassiopeia
Distance: 7,500 light years
Notes: The Heart (IC1805) includes NGC896 (lower right) and Melotte 15 (open cluster at center)

Exposure Data

Date: 10/9 - 10/12/21
Location: Backyard Observatory, Carlsbad, CA
Telescope: Williams Optics Star 71, 5-element.  350mm at f/4.9
Camera: QSI 683 wgs with  Astronomik 6nm Ha OIII  and SII narrowband filters
Mount: Losmandy G-11 Gemini I
Exposure time: Ha:12 x 15 min each of Ha, OIII, and SIII
Exposure time total: 9.0 hrs
Color mapped by assigning Ha to Red, OIII to Blue and SII to Green

FOV = 177 x 133 arcmin  (image reduced 60% of original)



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