Star · K0V
GJ 9003
GJ 9003 is a main-sequence star of spectral type K0V in the constellation Cetus, 107.0 light-years from the Sun.
| Other names | HIP 616 |
|---|---|
| Constellation | Cetus |
| Distance | 107.0 light-years (32.8 pc) |
| Apparent magnitude | magnitude 8.70 |
| Absolute magnitude | magnitude 6.12 |
| Spectral type | K0V |
| Surface temperature | 5,290 K |
| Luminosity | 0.375 L☉ |
| Radius | 0.73 R☉ |
| Mass | 0.782 M☉ (estimated) |
| Right ascension (J2000) | 0h 07m 32.6s |
| Declination (J2000) | −23° 49′ 07″ |
| Space velocity (relative to the Sun) | 67.5 km/s |
In the sky
Too faint for the naked eye (magnitude 8.70); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 66° N. South of latitude 66° S it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1919. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.9 million years.
The Sun seen from there
From a planet around GJ 9003, the Sun would look like a star of magnitude 7.41, in the direction where our sky has the constellation Coma Berenices. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- WISEA J000536.63-263311.8 5.73 light-years
- HIP 1546 9.26 light-years
- WISEA J000856.39-281321.7 9.92 light-years
- WISEA J000430.66-260402.3 10.0 light-years
- HIP 2237 11.2 light-years
- GJ 1293 13.5 light-years
- GJ 3026 13.5 light-years
- HIP 117481 14.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.