IC 1805 Heart Nebula

IC 1805 and IC 1848 are two emission nebulae located in the constellation Cassiopeia 7500 light-years from the Solar System, in the Spiral Arm of Perseus of the Milky Way. Both make up the stellar association Cassiopeia OB6.2 Also close to IC 1805 are Maffei I and Maffei II, two of the brightest galaxies in the Maffei Group.3

IC1805 SHO

Technical data of the acquisition:

Baader H-alpha 6.5nm (CMOS-Optimized) 36 mm: 20×900,″(5h)
Baader O-III 6.5nm (CMOS-Optimized) 36 mm: 20×900,″(5h)
Baader S-II 6.5nm (CMOS-Optimized) 36 mm: 20×900,″(5h)
Time integration:

The distance to these two nebulae is well determined, mainly because they have a star cluster at their center (it is much easier to determine the distance of a nebula if this occurs). The Heart and Soul nebulae are located in the Perseus arm of our galaxy 7000 and 7500 light-years from us. This part of the arm has great star-forming activity and there are many young star clusters.

The nebula is characterized by its intense red color and its configuration is the result of radiation emanating from a small group of stars near the center of the nebula that ionize the gas giving it that red color.

Melotte 15 in the center of IC1805

This open cluster of stars known as Melotte 15 contains some bright stars about 50 times the mass of our Sun, and many fainter stars that are only a fraction of the mass of our Sun. The Nebula Cluster contained a microquasar that was ejected millions of years ago.

New image in SHO combining current images with images obtained in 2014.
The image is obtained with the current equipment and the 2014 images are obtained with an S/C 8″ equipment and an ATIK 314L+ ccd, they correspond to the areas of Melotte15 (center of the image) and IC1795 (Fish Nebula). This Work totals more than 35 hours including both resolutions.

You can see in the area on the right the object WeBo1 also known as PN G135.6+01.0.

IC 1805 SHO