Star · G0
GJ 4200
GJ 4200 is a giant star of spectral type G0 in the constellation Capricornus, 483.2 light-years from the Sun.
| Other names | HIP 106280 |
|---|---|
| Constellation | Capricornus |
| Distance | 483.2 light-years (148.1 pc) |
| Apparent magnitude | magnitude 7.40 |
| Absolute magnitude | magnitude 1.55 |
| Spectral type | G0 |
| Surface temperature | 5,110 K |
| Luminosity | 27.1 L☉ |
| Radius | 6.65 R☉ |
| Mass | 2.33 M☉ (estimated) |
| Right ascension (J2000) | 21h 31m 34.4s |
| Declination (J2000) | −9° 44′ 41″ |
| Space velocity (relative to the Sun) | 138.6 km/s |
In the sky
Too faint for the naked eye (magnitude 7.40); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 80° N. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1543. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 8.6 million years.
The Sun seen from there
From a planet around GJ 4200, the Sun would look like a star of magnitude 10.68, in the direction where our sky has the constellation Leo. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.