Star · G0
GJ 3312
GJ 3312 is a giant star of spectral type G0 in the constellation Perseus, 218.8 light-years from the Sun.
| Other names | HIP 22196 |
|---|---|
| Constellation | Perseus |
| Distance | 218.8 light-years (67.1 pc) |
| Apparent magnitude | magnitude 6.53 |
| Absolute magnitude | magnitude 2.40 |
| Spectral type | G0 |
| Surface temperature | 5,590 K |
| Luminosity | 10.6 L☉ |
| Radius | 3.48 R☉ |
| Mass | 1.81 M☉ (estimated) |
| Right ascension (J2000) | 4h 46m 26.9s |
| Declination (J2000) | +42° 20′ 55″ |
| Space velocity (relative to the Sun) | 32.5 km/s |
In the sky
Too faint for the naked eye (magnitude 6.53); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 48° S. North of latitude 48° N it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1807. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.9 million years.
The Sun seen from there
From a planet around GJ 3312, the Sun would look like a star of magnitude 8.96, in the direction where our sky has the constellation Scorpius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.