Star · K3V
Gl 684B
Gl 684B is a main-sequence star of spectral type K3V in the constellation Draco, 47.1 light-years from the Sun.
| Constellation | Draco |
|---|---|
| Distance | 47.1 light-years (14.4 pc) |
| Apparent magnitude | magnitude 8.06 |
| Absolute magnitude | magnitude 7.26 |
| Spectral type | K3V |
| Surface temperature | 4,510 K |
| Luminosity | 0.193 L☉ |
| Radius | 0.717 R☉ |
| Mass | 0.662 M☉ (estimated) |
| Right ascension (J2000) | 17h 34m 59.2s |
| Declination (J2000) | +61° 52′ 34″ |
| Space velocity (relative to the Sun) | 40.7 km/s |
In the sky
Too faint for the naked eye (magnitude 8.06); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 28° S. North of latitude 28° N it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1979. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 835 thousand years.
The Sun seen from there
From a planet around Gl 684B, the Sun would look like a star of magnitude 5.63, in the direction where our sky has the constellation Dorado. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.