Star · K2V
Gl 31.4
Gl 31.4 is a main-sequence star of spectral type K2V in the constellation Cetus, 73.0 light-years from the Sun.
| Other names | HIP 3535 |
|---|---|
| Constellation | Cetus |
| Distance | 73.0 light-years (22.4 pc) |
| Apparent magnitude | magnitude 8.03 |
| Absolute magnitude | magnitude 6.28 |
| Spectral type | K2V |
| Surface temperature | 4,780 K |
| Luminosity | 0.403 L☉ |
| Radius | 0.924 R☉ |
| Mass | 0.797 M☉ (estimated) |
| Right ascension (J2000) | 0h 45m 04.9s |
| Declination (J2000) | +1° 47′ 08″ |
| Space velocity (relative to the Sun) | 61.8 km/s |
In the sky
Too faint for the naked eye (magnitude 8.03); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 88° S. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1953. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around Gl 31.4, the Sun would look like a star of magnitude 6.58, in the direction where our sky has the constellation Virgo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3071 6.94 light-years
- 2MASS J00320509+0219017 7.32 light-years
- GJ 1027 7.33 light-years
- 13 Cet 8.22 light-years
- GJ 3037 8.32 light-years
- Gl 23B 8.52 light-years
- HIP 3979 8.92 light-years
- WISEA J010202.11+035541.4 10.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.