Star · F3III
Jishui
Jishui is a giant star of spectral type F3III in the constellation Gemini, 168.7 light-years from the Sun.
| Other names | ο Gem · HIP 37265 |
|---|---|
| Constellation | Gemini |
| Distance | 168.7 light-years (51.7 pc) |
| Apparent magnitude | magnitude 4.89 |
| Absolute magnitude | magnitude 1.32 |
| Spectral type | F3III |
| Surface temperature | 6,810 K |
| Luminosity | 25.1 L☉ |
| Radius | 3.6 R☉ |
| Mass | 2.28 M☉ (estimated) |
| Right ascension (J2000) | 7h 39m 09.9s |
| Declination (J2000) | +34° 35′ 04″ |
| Space velocity (relative to the Sun) | 30.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.89). Visible from the whole Northern Hemisphere and south to latitude 55° S. North of latitude 55° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1857. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.0 million years.
The Sun seen from there
From a planet around Jishui, the Sun would look like a star of magnitude 8.40, in the direction where our sky has the constellation Sagittarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 36993 9.10 light-years
- TOI-1718 14.4 light-years
- SDSS J074913.84+314340.0 14.4 light-years
- HIP 37267 16.2 light-years
- HIP 39400 16.5 light-years
- SDSS J074756.31+394732.9 18.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.