- Stars with a name
- Yed Posterior
Yed Posterior
ε Ophiuchi
Yed Posterior is a yellow giant like the Sun, in the constellation Ophiuchus. The light you see from it tonight left it around 1920.
Where to find it
From mid-northern latitudes, such as New York, Rome or Tokyo, it is best seen in the evening sky in May, June, July, and August.
Visible to the naked eye away from the brightest lights. Apparent magnitude 3.23.
What it’s like
It gives off 47 times as much light as the Sun.
Its surface is at about 4,800 degrees.
It is 106.5 light years away: 1007 trillion kilometres.