Star · K6
Gl 509B
Gl 509B is a main-sequence star of spectral type K6 in the constellation Canes Venatici, 59.1 light-years from the Sun.
| Constellation | Canes Venatici |
|---|---|
| Distance | 59.1 light-years (18.1 pc) |
| Apparent magnitude | magnitude 9.80 |
| Absolute magnitude | magnitude 8.51 |
| Spectral type | K6 |
| Surface temperature | 4,380 K |
| Luminosity | 0.0675 L☉ |
| Radius | 0.451 R☉ |
| Mass | 0.51 M☉ (estimated) |
| Right ascension (J2000) | 13h 23m 33.0s |
| Declination (J2000) | +29° 14′ 14″ |
| Space velocity (relative to the Sun) | 44.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.80. Visible from the whole Northern Hemisphere and south to latitude 61° S. North of latitude 61° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1967. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.0 million years.
The Sun seen from there
From a planet around Gl 509B, the Sun would look like a star of magnitude 6.12, in the direction where our sky has the constellation Sculptor. 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.