Waid Observatory

Object: IC 1805 - The Heart Nebula
Date: Jan. 24-25, 2018    -    Location: Davis Mountains west of Fort Davis, Texas
Telescope: Stellarvue SV102ED  -  Camera: ST-8300M    /Filters:   Astrodon Ha/OIII
Exposure: Ha = 200 min. - OIII = 300 min.

Click on the image to view at higher resolution.
IC 1805

IC 1805 - The Heart Nebula 1

IC 1805 - The Heart Nebula, is also classified in the Sharpless catalog as Sh2-190.  It lies at an approximate distance of 2,500 lightyears in the constellation Cassiopeia.  It is a HII region of gas and dust that is illuminated by young massive stars in an open cluster located in the center of the nebula.  This cluster is designated Melotte 15 and contains a few stars with masses almost 50 times the mass of our Sun.  The intense radiation and stellar winds of these stars are the major sources shaping the features, columns, and pillars of this impressive celestial vista.

The image above was captured using Ha (Hydrogen Alpha) and OIII (Doubly Ionized Oxygen)  narrowband filters.  The image was assembled by mapping Ha to red and OIII to green and blue.  This produces a near true color image.  A full narrowband version (Hubble Palette Colors) of the image may be viewed here.

1 https://en.wikipedia.org/wiki/Heart_Nebula

Copyright Donald P. Waid