Theemin is a yellow giant on the long winding course of Eridanus, the River, a star that has left its quiet middle age and swollen as its core ran dry.
At a glance
| type | yellow giant (class G) |
|---|---|
| distance from the Sun | 214 light-years (65.6 pc) |
| its light left it | 214 years ago |
| luminosity | 136 × the Sun |
| radius | 13.8 × the Sun |
| surface temperature | 5,310 K |
| constellation | Eridanus (River) |
Read off the piece’s own catalogue, the same values it draws with.
About Theemin
Theemin is a giant: its core has exhausted its hydrogen, and the star has expanded and cooled at the surface to a yellow close to the Sun’s, while shining far more brightly because of its size. Stars like this spend a short time as giants compared with their long hydrogen-burning lives.
It lies in the southern stretch of Eridanus, a faint constellation that meanders from Orion’s foot towards Achernar at its mouth. Like most of the River’s stars it is modest to the eye, one link in a chain of faint points rather than a landmark.
What you see in the piece
Seen from Earth Theemin is a link in the River; from space the River’s stars spread out along the line of sight, and Theemin is left alone with nothing in the figure near it.
Questions
What kind of star is Theemin?
Theemin is a yellow giant (class G), with a surface temperature of 5,310 K and a radius 13.8 times the Sun’s.