Star · G5
GJ 9551
GJ 9551 is a main-sequence star of spectral type G5 in the constellation Ursa Minor, 130.9 light-years from the Sun.
| Other names | HIP 79619 |
|---|---|
| Constellation | Ursa Minor |
| Distance | 130.9 light-years (40.1 pc) |
| Apparent magnitude | magnitude 7.83 |
| Absolute magnitude | magnitude 4.81 |
| Spectral type | G5 |
| Surface temperature | 5,530 K |
| Luminosity | 1.17 L☉ |
| Radius | 1.18 R☉ |
| Mass | 1.04 M☉ (estimated) |
| Right ascension (J2000) | 16h 14m 50.3s |
| Declination (J2000) | +70° 55′ 47″ |
| Space velocity (relative to the Sun) | 57.2 km/s |
In the sky
Too faint for the naked eye (magnitude 7.83); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 19° S. North of latitude 19° N it never sets. 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 1895. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.3 million years.
The Sun seen from there
From a planet around GJ 9551, the Sun would look like a star of magnitude 7.85, in the direction where our sky has the constellation Hydrus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J16062665+6837268 9.08 light-years
- TOI-1743 11.2 light-years
- HIP 79981 11.6 light-years
- HIP 85887 15.5 light-years
- HIP 80467 15.8 light-years
- Kochab 16.1 light-years
- HIP 86534 17.4 light-years
- HIP 87079 17.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.