- Stars with a name
- Jishui
Jishui
ο Geminorum
Jishui is a yellow-white giant, in the constellation Gemini. The light you see from it tonight left it around 1860.
Where to find it
From mid-northern latitudes, such as New York, Rome or Tokyo, it is best seen in the evening sky in January, February, March, April, and December.
Visible to the naked eye only under a dark sky, away from town. Apparent magnitude 4.89.
What it’s like
It gives off 25 times as much light as the Sun.
Its surface temperature is about 6,500 degrees Celsius.
It is 166.3 light years away: 1574 trillion kilometres.