Star · ?
GJ 1201
GJ 1201 is a white dwarf of spectral type ? in the constellation Hercules, 81.8 light-years from the Sun.
| Constellation | Hercules |
|---|---|
| Distance | 81.8 light-years (25.1 pc) |
| Apparent magnitude | magnitude 16.13 |
| Absolute magnitude | magnitude 14.13 |
| Spectral type | ? |
| Surface temperature | 8,000 K |
| Luminosity | 2.01 × 10⁻⁴ L☉ |
| Radius | 0.012 R☉ |
| Mass | 0.6 M☉ (estimated) |
| Right ascension (J2000) | 16h 27m 53.3s |
| Declination (J2000) | +9° 12′ 14″ |
| Space velocity (relative to the Sun) | 57.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 16.13. Visible from the whole Northern Hemisphere and south to latitude 81° S. 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 1944. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.5 million years.
The Sun seen from there
From a planet around GJ 1201, the Sun would look like a star of magnitude 6.83, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 79702 8.05 light-years
- Gl 615.1A 8.28 light-years
- Gl 615.1B 8.29 light-years
- GJ 3946 9.44 light-years
- GJ 3939 9.70 light-years
- WISE J163236.47+032927.3 10.6 light-years
- 2MASS J16573454+1054233 11.0 light-years
- PSO J246.4222+15.4698 11.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.