This stunning image features a deep field view of the Cassiopeia constellation where the two small planetary nebulas can be ...

All illustrations of constellations in this ... known star and the first point of light when you locate the constellation from Cassiopeia. Amazingly, even though it appears dimmer than many ...

After boasting of her beauty to the Nereids or sea nymphs, she is punished rather harshly in my view by Poseidon and finds herself tethered to the north star Polaris to spin around it for perpetuity ...

This image features a deep field view of the Cassiopeia constellation immersed in the glow of ionized hydrogen gas, where the two small planetary nebulas can be found, Abell 6 and the larger HFG1.