Star · K8
Gl 558
Gl 558 is a main-sequence star of spectral type K8 in the constellation Boötes, 65.4 light-years from the Sun.
| Other names | HIP 71311 |
|---|---|
| Constellation | Boötes |
| Distance | 65.4 light-years (20.0 pc) |
| Apparent magnitude | magnitude 9.54 |
| Absolute magnitude | magnitude 8.03 |
| Spectral type | K8 |
| Surface temperature | 4,150 K |
| Luminosity | 0.128 L☉ |
| Radius | 0.692 R☉ |
| Mass | 0.599 M☉ (estimated) |
| Right ascension (J2000) | 14h 34m 57.8s |
| Declination (J2000) | +33° 44′ 48″ |
| Space velocity (relative to the Sun) | 90.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.54. Visible from the whole Northern Hemisphere and south to latitude 56° S. North of latitude 56° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1961. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around Gl 558, the Sun would look like a star of magnitude 6.34, in the direction where our sky has the constellation Fornax. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HD 127506 8.34 light-years
- SDSS J135852.68+374711.9 9.52 light-years
- SDSS J151643.01+305344.4 10.9 light-years
- GJ 3833 11.0 light-years
- η CrB 12.7 light-years
- Gl 564 12.8 light-years
- 45 Boo 12.8 light-years
- Gl 579 13.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.