Star · K0
Gl 579.3
Gl 579.3 is a main-sequence star of spectral type K0 in the constellation Serpens, 142.3 light-years from the Sun.
| Other names | HIP 74443 |
|---|---|
| Constellation | Serpens |
| Distance | 142.3 light-years (43.6 pc) |
| Apparent magnitude | magnitude 9.28 |
| Absolute magnitude | magnitude 6.08 |
| Spectral type | K0 |
| Surface temperature | 5,370 K |
| Luminosity | 0.379 L☉ |
| Radius | 0.712 R☉ |
| Mass | 0.785 M☉ (estimated) |
| Right ascension (J2000) | 15h 12m 47.6s |
| Declination (J2000) | −1° 09′ 58″ |
| Space velocity (relative to the Sun) | 97.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.28. Visible from the whole Southern Hemisphere and north to latitude 89° N. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1884. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.5 million years.
The Sun seen from there
From a planet around Gl 579.3, the Sun would look like a star of magnitude 8.03, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 75069 6.25 light-years
- ULAS J151637.89+011050.1 7.80 light-years
- 4 Ser 12.5 light-years
- HIP 74164 14.7 light-years
- HIP 76292 15.0 light-years
- 10 Ser 16.5 light-years
- HIP 73169 16.6 light-years
- HIP 72663 18.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.