IC1805 "The Heart Nebula" or Sh2-190, lies some 7500 light years away from Earth and 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. The nebula is formed by plasma of ionized hydrogen and free electrons (Wikipedia).
Bi-colour Narrow Band HaOO composition, total integration 3 hrs, October 2014. Takahashi FSQ85 EDX at F3.9 - Avalon Linear Fast Reverse - Atik 460EX - Astrodon 5nm NB filters.