Star · K5
GJ 3906
GJ 3906 is a main-sequence star of spectral type K5 in the constellation Serpens, 89.2 light-years from the Sun.
| Other names | HIP 75672 |
|---|---|
| Constellation | Serpens |
| Distance | 89.2 light-years (27.4 pc) |
| Apparent magnitude | magnitude 9.90 |
| Absolute magnitude | magnitude 7.71 |
| Spectral type | K5 |
| Surface temperature | 3,710 K |
| Luminosity | 0.288 L☉ |
| Radius | 1.3 R☉ |
| Mass | 0.733 M☉ (estimated) |
| Right ascension (J2000) | 15h 27m 38.0s |
| Declination (J2000) | +10° 35′ 39″ |
| Space velocity (relative to the Sun) | 68.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.90. Visible from the whole Northern Hemisphere and south to latitude 79° S. North of latitude 79° 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 1937. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around GJ 3906, the Sun would look like a star of magnitude 7.02, 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):
- ULAS J152502.10+083344.0 9.28 light-years
- SDSS J151114.66+060742.9 9.40 light-years
- HIP 76114 9.43 light-years
- ULAS J150547.89+070316.6 10.7 light-years
- Gl 585.1 13.0 light-years
- HIP 75090 13.7 light-years
- GJ 1188 14.1 light-years
- GJ 3932 14.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.