Star · ?
GJ 3869B
GJ 3869B is a main-sequence star of spectral type ? in the constellation Boötes, 98.0 light-years from the Sun.
| Constellation | Boötes |
|---|---|
| Distance | 98.0 light-years (30.0 pc) |
| Apparent magnitude | magnitude 8.90 |
| Absolute magnitude | magnitude 6.51 |
| Spectral type | ? |
| Surface temperature | 4,130 K |
| Luminosity | 0.533 L☉ |
| Radius | 1.43 R☉ |
| Mass | 0.854 M☉ (estimated) |
| Right ascension (J2000) | 14h 51m 02.1s |
| Declination (J2000) | +9° 43′ 19″ |
| Space velocity (relative to the Sun) | 46.6 km/s |
In the sky
Too faint for the naked eye (magnitude 8.90); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 80° 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 1928. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.7 million years.
The Sun seen from there
From a planet around GJ 3869B, the Sun would look like a star of magnitude 7.22, 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):
- GJ 3868A 0.03 light-years
- Gl 563.3 6.05 light-years
- CFBDSIR J145829+101343 6.92 light-years
- GJ 3884 7.52 light-years
- GJ 1184 8.44 light-years
- SDSS J143553.25+112948.6 9.53 light-years
- HIP 71824 10.2 light-years
- HIP 71190 10.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.