Star · M3
GJ 3812
GJ 3812 is a main-sequence star of spectral type M3 in the constellation Canes Venatici, 55.1 light-years from the Sun.
| Constellation | Canes Venatici |
|---|---|
| Distance | 55.1 light-years (16.9 pc) |
| Apparent magnitude | magnitude 13.65 |
| Absolute magnitude | magnitude 12.51 |
| Spectral type | M3 |
| Surface temperature | 3,850 K |
| Luminosity | 0.00288 L☉ |
| Radius | 0.12 R☉ |
| Mass | 0.149 M☉ (estimated) |
| Right ascension (J2000) | 13h 50m 52.2s |
| Declination (J2000) | +36° 44′ 13″ |
| Space velocity (relative to the Sun) | 35.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.65. Visible from the whole Northern Hemisphere and south to latitude 53° S. North of latitude 53° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1971. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 978 thousand years.
The Sun seen from there
From a planet around GJ 3812, the Sun would look like a star of magnitude 5.97, in the direction where our sky has the constellation Fornax. It would be visible 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.