- Stars with a name
- Castula
Castula
υ² Cassiopeiae
Castula is a yellow giant like the Sun, in the constellation Cassiopeia. The light you see from it tonight left it around 1826.
Where to find it
From mid-northern latitudes, such as New York, Rome or Tokyo, it never sets: it circles the pole all night, all year.
Visible to the naked eye only under a dark sky, away from town. Apparent magnitude 4.62.
What it’s like
It gives off 46 times as much light as the Sun.
Its surface is at about 4,800 degrees.
It is 199.9 light years away: 1891 trillion kilometres.