Star · K9V
Gl 91
Gl 91 is a main-sequence star of spectral type K9V in the constellation Fornax, 41.8 light-years from the Sun.
| Other names | HIP 10395 |
|---|---|
| Constellation | Fornax |
| Distance | 41.8 light-years (12.8 pc) |
| Apparent magnitude | magnitude 10.31 |
| Absolute magnitude | magnitude 9.77 |
| Spectral type | K9V |
| Surface temperature | 3,830 K |
| Luminosity | 0.0372 L☉ |
| Radius | 0.439 R☉ |
| Mass | 0.439 M☉ (estimated) |
| Right ascension (J2000) | 2h 13m 53.6s |
| Declination (J2000) | −32° 02′ 29″ |
| Space velocity (relative to the Sun) | 71.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.31. Visible from the whole Southern Hemisphere and north to latitude 58° N. South of latitude 58° S it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1984. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 741 thousand years.
The Sun seen from there
From a planet around Gl 91, the Sun would look like a star of magnitude 5.37, in the direction where our sky has the constellation Boötes. 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.