Star · K0IV
Gl 54.3
Gl 54.3 is a subgiant star of spectral type K0IV in the constellation Tucana, 188.4 light-years from the Sun.
| Other names | HIP 5817 |
|---|---|
| Constellation | Tucana |
| Distance | 188.4 light-years (57.7 pc) |
| Apparent magnitude | magnitude 9.03 |
| Absolute magnitude | magnitude 5.22 |
| Spectral type | K0IV |
| Surface temperature | 5,400 K |
| Luminosity | 0.828 L☉ |
| Radius | 1.04 R☉ |
| Mass | 0.954 M☉ (estimated) |
| Right ascension (J2000) | 1h 14m 40.5s |
| Declination (J2000) | −64° 45′ 51″ |
| Space velocity (relative to the Sun) | 110.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.03. Visible from the whole Southern Hemisphere and north to latitude 25° N. South of latitude 25° 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 1838. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.3 million years.
The Sun seen from there
From a planet around Gl 54.3, the Sun would look like a star of magnitude 8.64, in the direction where our sky has the constellation Draco. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 5266 6.66 light-years
- HIP 3924 11.3 light-years
- HIP 4877 11.4 light-years
- HIP 6703 11.7 light-years
- HIP 6616 12.9 light-years
- HIP 4394 14.6 light-years
- HIP 6221 14.8 light-years
- HIP 5943 15.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.