This is the Heart Nebula, Sharpless 2-190. It is an enormous area of sky, larger than my telescope can encompass in one frame. It is a cloud of mainly hydrogen with a lot of silicon here and there, lit up by an open cluster of giant stars in the center. This cluster is designated IC 1805, and the bright western lobe of the nebula also has its own catalogue designation, NGC 896. This was my first attempt at using a narrowband filter, the only one I have; it passed hydrogen, the red color, and blocked the blue from silicon.

The Heart Nebula is 7500 light years away in the constellation Cassiopeia. It covers an area of sky 4 times the size of the moon.