Star · K1V
Gl 738B
Gl 738B is a main-sequence star of spectral type K1V in the constellation Lyra, 48.1 light-years from the Sun.
| Constellation | Lyra |
|---|---|
| Distance | 48.1 light-years (14.8 pc) |
| Apparent magnitude | magnitude 7.70 |
| Absolute magnitude | magnitude 6.86 |
| Spectral type | K1V |
| Surface temperature | 4,260 K |
| Luminosity | 0.341 L☉ |
| Radius | 1.07 R☉ |
| Mass | 0.764 M☉ (estimated) |
| Right ascension (J2000) | 18h 57m 01.5s |
| Declination (J2000) | +32° 54′ 07″ |
| Space velocity (relative to the Sun) | 17.9 km/s |
In the sky
Too faint for the naked eye (magnitude 7.70); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 57° S. North of latitude 57° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1978. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 854 thousand years.
The Sun seen from there
From a planet around Gl 738B, the Sun would look like a star of magnitude 5.67, in the direction where our sky has the constellation Canis Major. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 738A 0.46 light-years
- WISEPA J185215.78+353716.3 3.65 light-years
- Gl 758 5.56 light-years
- WISE J191915.54+304558.4 5.86 light-years
- GJ 4073 6.94 light-years
- GJ 4055 7.57 light-years
- GJ 4098 7.69 light-years
- GJ 4062 8.39 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.