Cih
γ Cassiopeiae
Cih is a very hot blue star, in the constellation Cassiopeia. The light you see from it tonight left it around 1477.
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.
Bright enough to see even from a city. Apparent magnitude 2.15.
What it’s like
It gives off 3,407 times as much light as the Sun.
Its surface temperature is about 10,500 degrees Celsius.
It is 549.1 light years away: 5195 trillion kilometres.