Cassiopeia is one of the proudest constellations in the sky and stands out for its distinctive W- or M-shaped formation. It never drops below the Northern Hemisphere sky's horizon, so it's a great ...

This image features a deep field view of the Cassiopeia constellation immersed in the ... HFG1 features a prominent bluish arc-shaped shock wave, known as a bow shock, created as the binary ...

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.