Star · ?
GJ 3210
GJ 3210 is a white dwarf of spectral type ? in the constellation Horologium, 3,209 light-years from the Sun.
| Constellation | Horologium |
|---|---|
| Distance | 3,209 light-years (984.0 pc) |
| Apparent magnitude | magnitude 14.75 |
| Absolute magnitude | magnitude 4.79 |
| Spectral type | ? |
| Surface temperature | 8,000 K |
| Luminosity | 0.05 L☉ |
| Radius | 0.012 R☉ |
| Mass | 0.6 M☉ (estimated) |
| Right ascension (J2000) | 3h 12m 42.8s |
| Declination (J2000) | −54° 06′ 51″ |
| Space velocity (relative to the Sun) | 293.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.75. Visible from the whole Southern Hemisphere and north to latitude 36° N. South of latitude 36° S 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 1184 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 57 million years.
The Sun seen from there
From a planet around GJ 3210, the Sun would look like a star of magnitude 14.79, in the direction where our sky has the constellation Boötes. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.