Star profile
Jishui
Omicron Geminorum · Gemini
What is Jishui
Jishui preserves the name Chinese astronomy gave to this star in Gemini, linked to an asterism of standing waters or swollen rivers in the old agricultural tradition. It is a yellow-white star 166 light-years away, slightly hotter than the Sun. Its light, observed tonight, set out in a nineteenth century still vigorously debating whether nebulae were clouds of gas or entire galaxies at immense distances.
Where it is and when to see it
Jishui lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is January: the Sun sits at the opposite point of the sky and the star culminates around midnight. How high it climbs above the horizon depends on the latitude you watch from.
It opens in your browser. Free, no account, nothing to install.
The signature wall
Stelvia's sky works like a signature wall: anyone can leave their name and a message on a real star, and that signature goes up on the map for everyone to read. Signing is free.
A signature without a lock can be replaced by someone else's. The lock makes the signature permanent and lets you choose a symbolic name for the star, always shown next to the star's catalogue identifier. How the lock works
If you don't have an account yet, we'll ask for an email to confirm it's you: we send you a link and that's it, no password.
A public signature from a real person. The chosen name is a symbolic denomination within Stelvia, with no official standing or IAU recognition: the sky is not for sale and belongs to no one.
Astronomical data for Jishui
- Constellation
- Gemini
- Apparent magnitude
- 4.89
- Distance
- 166.3 light years
- Coordinates (J2000)
- RA 114.791° · Dec 34.584°
- Catalogue
- HIP 37265 · HD 61110
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Gemini
Gemini has 74 stars in Stelvia's catalogue. Here are a few of them.
- PolluxBeta Geminorum1.16
- CastorAlpha Geminorum1.58
- AlhenaGamma Geminorum1.93
- Tau Geminorum4.41
- 30 Geminorum4.49
- 38 Geminorum4.73
- 81 Geminorum4.89
- Chi Geminorum4.94