Star · G0V
13 Tri
13 Tri is a main-sequence star of spectral type G0V in the constellation Triangulum, 102.9 light-years from the Sun.
| Other names | Gl 99.1 · HIP 11548 |
|---|---|
| Constellation | Triangulum |
| Distance | 102.9 light-years (31.5 pc) |
| Apparent magnitude | magnitude 5.89 |
| Absolute magnitude | magnitude 3.40 |
| Spectral type | G0V |
| Surface temperature | 6,000 K |
| Luminosity | 3.92 L☉ |
| Radius | 1.83 R☉ |
| Mass | 1.41 M☉ (estimated) |
| Right ascension (J2000) | 2h 28m 48.5s |
| Declination (J2000) | +29° 55′ 54″ |
| Space velocity (relative to the Sun) | 43.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.89). Visible from the whole Northern Hemisphere and south to latitude 60° S. North of latitude 60° N 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 1923. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.8 million years.
The Sun seen from there
From a planet around 13 Tri, the Sun would look like a star of magnitude 7.32, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 11317 7.68 light-years
- GJ 3143 8.86 light-years
- 2MASSW J0228110+253738 9.80 light-years
- GJ 9089 10.8 light-years
- WISE J023318.05+303030.5 11.5 light-years
- HIP 13065 11.9 light-years
- GJ 3166 12.1 light-years
- HIP 13644 12.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.