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Catalogue and alternative designations

IC 1805, Heart nebula, Sharpless- 2 190

Type Emission Nebula
Position 03 32 35.57, 61 29 2.3 
Constellation Cassiopeia
Camera and Telescope QSI 583 WSG, 20cm Maksutov Newtonian courtesy Dean Salman
Focal Ratio F4
Exposure Details HaLRGB 560:150:150:150 with Astrodon series 2 filters
Description The Heart Nebula, IC 1805, Sh2-190, lies some 7500 light years away 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.   This image only shows a part of the total nebula.

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. (description adapted from Wikipedia)