Next, scan about one-third of the way from Segin toward Polaris (Alpha Ursae Minoris). Pause when you spot the Keystone asterism formed by 40, 42, 48, and 50 Cassiopeiae, and then look carefully ...

C 63 — nicknamed the Ghost Nebula — is about 550 light-years from Earth. The nebula is classified as both a reflection nebula — as it is reflecting the light of a nearby star — and as an ...

As @popastro points out, if you follow a line from the 2nd magnitude star Schedar (Alpha [α] Cassiopeiae) through the first magnitude star Caph (Beta [β] Cassiopeiae), you’ll be directed ...

In this case, the speedster star is known as Kappa Cassiopeiae, or HD 2905 to astronomers. It is a massive, hot supergiant moving at around 2.5 million mph relative to its neighbors (1,100 ...

About 550 light-years away in the constellation of Cassiopeia lies IC 63, a stunning and slightly eerie nebula. Also known as the ghost of Cassiopeia, IC 63 is being shaped by radiation from a ...