Star · M5
Gl 65B
Gl 65B is a main-sequence star of spectral type M5 in the constellation Cetus, 8.72 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 8.72 light-years (2.67 pc) |
| Apparent magnitude | magnitude 12.70 |
| Absolute magnitude | magnitude 15.56 |
| Spectral type | M5 |
| Surface temperature | 3,790 K |
| Luminosity | 1.87 × 10⁻⁴ L☉ |
| Radius | 0.0317 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 1h 39m 00.8s |
| Declination (J2000) | −17° 57′ 02″ |
| Space velocity (relative to the Sun) | 52.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.70. 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 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 2017. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 155 thousand years.
The Sun seen from there
From a planet around Gl 65B, the Sun would look like a star of magnitude 1.97, 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):
- Gl 65A 0.15 light-years
- τ Cet 3.21 light-years
- YZ Cet 3.59 light-years
- Ran 5.10 light-years
- Lacaille 9352 6.64 light-years
- GJ 1061 7.13 light-years
- Van Maanen's Star 7.36 light-years
- EZ Aqr 7.62 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.