scinerds: Melotte 15: Open Cluster in Cassiopeia The Heart of Heart Nebula - IC1805 This is the H-HO-O bicolor combination. Melotte 15 is a very loose open cluster in the central regions of emission nebula IC 1805 (Heart Nebula) located about 7500 light
scinerds: Melotte 15: Open Cluster in Cassiopeia The Heart of Heart Nebula - IC1805 This is the H-HO-O bicolor combination. Melotte 15 is a very loose open cluster in the central regions of emission nebula IC 1805 (Heart Nebula) located about 7500 light