Star · ?
GJ 3866
GJ 3866 is a white dwarf of spectral type ? in the constellation Libra, 43.4 light-years from the Sun.
| Constellation | Libra |
|---|---|
| Distance | 43.4 light-years (13.3 pc) |
| Apparent magnitude | magnitude 16.48 |
| Absolute magnitude | magnitude 15.86 |
| Spectral type | ? |
| Surface temperature | 8,000 K |
| Luminosity | 4.09 × 10⁻⁵ L☉ |
| Radius | 0.012 R☉ |
| Mass | 0.6 M☉ (estimated) |
| Right ascension (J2000) | 14h 47m 24.9s |
| Declination (J2000) | −17° 42′ 22″ |
| Space velocity (relative to the Sun) | 72.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 16.48. Visible from the whole Southern Hemisphere and north to latitude 72° N. South of latitude 72° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1983. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 769 thousand years.
The Sun seen from there
From a planet around GJ 3866, the Sun would look like a star of magnitude 5.45, in the direction where our sky has the constellation Aries. 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.