- Stars with a name
- Struve 2398 B
Struve 2398 B
HD 173740
Struve 2398 B is an orange star, in the constellation Draco. The light you see from it tonight left it around 2015.
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.
Very faint: you’ll need a telescope. Apparent magnitude 9.70.
What it’s like
It gives off about 0.10% of the Sun’s light.
Its surface is at about 3,700 degrees.
It is 11.3 light years away: 107 trillion kilometres.
It is the star of people born around 2015: the light that left it then is reaching Earth now.