Star · M0
GJ 3857
GJ 3857 is a main-sequence star of spectral type M0 in the constellation Virgo, 121.8 light-years from the Sun.
| Other names | HIP 71108 |
|---|---|
| Constellation | Virgo |
| Distance | 121.8 light-years (37.3 pc) |
| Apparent magnitude | magnitude 10.65 |
| Absolute magnitude | magnitude 7.79 |
| Spectral type | M0 |
| Surface temperature | 4,290 K |
| Luminosity | 0.141 L☉ |
| Radius | 0.681 R☉ |
| Mass | 0.613 M☉ (estimated) |
| Right ascension (J2000) | 14h 32m 30.5s |
| Declination (J2000) | +5° 46′ 40″ |
| Space velocity (relative to the Sun) | 60.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.65. Visible from the whole Northern Hemisphere and south to latitude 84° S. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1904. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.2 million years.
The Sun seen from there
From a planet around GJ 3857, the Sun would look like a star of magnitude 7.69, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 70782 10.4 light-years
- HIP 70386 12.7 light-years
- ULAS J142007.60+021818.3 13.4 light-years
- HIP 73258 14.0 light-years
- HIP 73138 14.1 light-years
- HIP 73314 14.2 light-years
- HIP 72223 14.6 light-years
- HIP 73056 14.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.