Star · ?
GJ 3709B
GJ 3709B is a main-sequence star of spectral type ? in the constellation Corvus, 44.1 light-years from the Sun.
| Constellation | Corvus |
|---|---|
| Distance | 44.1 light-years (13.5 pc) |
| Apparent magnitude | magnitude 12.62 |
| Absolute magnitude | magnitude 11.97 |
| Spectral type | ? |
| Surface temperature | 3,540 K |
| Luminosity | 0.00749 L☉ |
| Radius | 0.23 R☉ |
| Mass | 0.226 M☉ (estimated) |
| Right ascension (J2000) | 12h 11m 17.0s |
| Declination (J2000) | −19° 58′ 19″ |
| Space velocity (relative to the Sun) | 16.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.62. Visible from the whole Southern Hemisphere and north to latitude 70° N. South of latitude 70° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1982. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 782 thousand years.
The Sun seen from there
From a planet around GJ 3709B, the Sun would look like a star of magnitude 5.48, in the direction where our sky has the constellation Pegasus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3708A 2.52 light-years
- GJ 3707 5.45 light-years
- Alchiba 6.16 light-years
- 2MASS J12255432-2739466 6.45 light-years
- Gl 454 7.76 light-years
- Gl 425B 8.95 light-years
- Gl 425A 9.08 light-years
- WISE J122152.28-313600.8 9.10 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.