Star · M3
Gl 617B
Gl 617B is a main-sequence star of spectral type M3 in the constellation Draco, 35.1 light-years from the Sun.
| Other names | HIP 79762 |
|---|---|
| Constellation | Draco |
| Distance | 35.1 light-years (10.8 pc) |
| Apparent magnitude | magnitude 10.69 |
| Absolute magnitude | magnitude 10.53 |
| Spectral type | M3 |
| Surface temperature | 3,790 K |
| Luminosity | 0.0193 L☉ |
| Radius | 0.322 R☉ |
| Mass | 0.341 M☉ (estimated) |
| Right ascension (J2000) | 16h 16m 45.4s |
| Declination (J2000) | +67° 15′ 22″ |
| Space velocity (relative to the Sun) | 31.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.69. Visible from the whole Northern Hemisphere and south to latitude 23° S. North of latitude 23° N it never sets. 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 1991. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 623 thousand years.
The Sun seen from there
From a planet around Gl 617B, the Sun would look like a star of magnitude 4.99, in the direction where our sky has the constellation Hydrus. 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.