Star · K5V
GJ 3678
GJ 3678 is a main-sequence star of spectral type K5V in the constellation Ursa Major, 63.0 light-years from the Sun.
| Other names | HIP 56829 |
|---|---|
| Constellation | Ursa Major |
| Distance | 63.0 light-years (19.3 pc) |
| Apparent magnitude | magnitude 8.22 |
| Absolute magnitude | magnitude 6.79 |
| Spectral type | K5V |
| Surface temperature | 4,790 K |
| Luminosity | 0.25 L☉ |
| Radius | 0.726 R☉ |
| Mass | 0.707 M☉ (estimated) |
| Right ascension (J2000) | 11h 38m 59.7s |
| Declination (J2000) | +42° 19′ 44″ |
| Space velocity (relative to the Sun) | 44.1 km/s |
In the sky
Too faint for the naked eye (magnitude 8.22); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 48° S. North of latitude 48° N 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 1963. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.1 million years.
The Sun seen from there
From a planet around GJ 3678, the Sun would look like a star of magnitude 6.26, in the direction where our sky has the constellation Phoenix. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3696 9.11 light-years
- Gl 414.1B 9.79 light-years
- Gl 414.1A 9.85 light-years
- GJ 9393 11.6 light-years
- WISEA J114350.90+401333.9 12.4 light-years
- CWISE J110201.76+350334.7 12.6 light-years
- Gl 433.2B 13.1 light-years
- Gl 433.2A 13.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.