Star · M5
GJ 1159B
GJ 1159B is a main-sequence star of spectral type M5 in the constellation Ursa Major, 81.6 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 81.6 light-years (25.0 pc) |
| Apparent magnitude | magnitude 18.00 |
| Absolute magnitude | magnitude 16.01 |
| Spectral type | M5 |
| Surface temperature | 3,790 K |
| Luminosity | 1.24 × 10⁻⁴ L☉ |
| Radius | 0.0258 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 29m 16.8s |
| Declination (J2000) | +53° 32′ 59″ |
| Space velocity (relative to the Sun) | 171.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 18.00. Visible from the whole Northern Hemisphere and south to latitude 36° S. North of latitude 36° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1944. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.4 million years.
The Sun seen from there
From a planet around GJ 1159B, the Sun would look like a star of magnitude 6.82, in the direction where our sky has the constellation Phoenix. 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.