The Heart Nebula (IC 1805) and the supernova remnant HB3 are both located in the constellation Cassiopeia, relatively close to the Fish Head Nebula (IC 1795), which is part of the same complex of nebulae.

The Heart Nebula is a large, emission nebula situated about 7,500 light-years from Earth. It spans roughly 200 light-years across and is named for its heart-shaped appearance. The nebula is a prolific region of star formation, where young, massive stars emit intense radiation that ionizes the surrounding gas and dust, causing it to glow in vivid colors. Its intricate structure features bright, glowing filaments and dark, dense knots, making it a captivating object for astronomers and astrophotographers.

HB3 is a faint supernova remnant located nearby that is the result of a massive star's explosion, which expelled its outer layers into space. This remnant has an elongated, irregular shape and is characterized by diffuse, low surface brightness, making it less conspicuous than some other nebulae. 

The Fish Head Nebula (IC 1795), located in the same region of Cassiopeia as the Heart Nebula, is a bright emission nebula known for its fish-like shape. It is part of the same star-forming complex, adding to the richness of the region with its vibrant colors and intricate structures. Together, these nebulae showcase the dynamic and diverse processes occurring in the interstellar medium.

This was my first time imaging the SNR HB3. After learning some more tricks in the processing field, im amazed of how much structure I could pull out of it. 

Clear skies!