IC 1805 "Heart Nebula" and IC 1795 in Cassiopeia
El Cerrito, CA
IC 1795 is a bright nebula attached to the right side of the "heart" nebula, IC 1805.
The Heart Nebula, IC 1805, lies some 7500 light years away from Earth.
It 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 nebula
is formed by plasma of ionized hydrogen (HII) and free electrons. The hydrogen has
been ionized by ultraviolet radiation from young hot stars at the center of the heart.
The nebula thus exhibits a characteristic red spectral glow (represented in this
monochrome image by white).
The image above was captured using a 7nm Baader hydrogen-alpha filter. Total exposure time was
180 minutes via twelve 15 minute sub exposures. Seeing was good, with FWHM = 1.8.
STL 11000 ccd camera, AP 130 @ F/4.5 refractor,STV, Tak EM 200