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