Star · M3
GJ 9203
GJ 9203 is a main-sequence star of spectral type M3 in the constellation Gemini, 135.6 light-years from the Sun.
| Constellation | Gemini |
|---|---|
| Distance | 135.6 light-years (41.6 pc) |
| Apparent magnitude | magnitude 13.34 |
| Absolute magnitude | magnitude 10.25 |
| Spectral type | M3 |
| Surface temperature | 3,790 K |
| Luminosity | 0.0251 L☉ |
| Radius | 0.367 R☉ |
| Mass | 0.382 M☉ (estimated) |
| Right ascension (J2000) | 6h 09m 02.2s |
| Declination (J2000) | +26° 33′ 26″ |
| Space velocity (relative to the Sun) | 108.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.34. Visible from the whole Northern Hemisphere and south to latitude 63° S. North of latitude 63° N it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1890. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.4 million years.
The Sun seen from there
From a planet around GJ 9203, the Sun would look like a star of magnitude 7.92, in the direction where our sky has the constellation Sagittarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 28884 3.64 light-years
- HIP 27528 18.1 light-years
- HIP 30880 18.6 light-years
- HIP 29074 20.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.