Star · K5
Gl 154
Gl 154 is a main-sequence star of spectral type K5 in the constellation Taurus, 46.9 light-years from the Sun.
| Other names | HIP 17609 |
|---|---|
| Constellation | Taurus |
| Distance | 46.9 light-years (14.4 pc) |
| Apparent magnitude | magnitude 9.61 |
| Absolute magnitude | magnitude 8.82 |
| Spectral type | K5 |
| Surface temperature | 3,890 K |
| Luminosity | 0.0824 L☉ |
| Radius | 0.632 R☉ |
| Mass | 0.536 M☉ (estimated) |
| Right ascension (J2000) | 3h 46m 20.2s |
| Declination (J2000) | +26° 12′ 56″ |
| Space velocity (relative to the Sun) | 46.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.61. Visible from the whole Northern Hemisphere and south to latitude 64° S. North of latitude 64° N it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1979. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 832 thousand years.
The Sun seen from there
From a planet around Gl 154, the Sun would look like a star of magnitude 5.62, in the direction where our sky has the constellation Libra. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3227 4.59 light-years
- GJ 3241 5.42 light-years
- GJ 3208 6.51 light-years
- WISEA J041743.13+241506.3 6.95 light-years
- WISE J040137.21+284951.7 7.13 light-years
- HIP 19337 7.28 light-years
- Gl 162 7.37 light-years
- 39 Tau 9.56 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.