Star · K3V
Gl 909A
Gl 909A is a main-sequence star of spectral type K3V in the constellation Cepheus, 35.5 light-years from the Sun.
| Other names | HIP 117712 |
|---|---|
| Constellation | Cepheus |
| Distance | 35.5 light-years (10.9 pc) |
| Apparent magnitude | magnitude 6.36 |
| Absolute magnitude | magnitude 6.17 |
| Spectral type | K3V |
| Surface temperature | 4,800 K |
| Luminosity | 0.441 L☉ |
| Radius | 0.96 R☉ |
| Mass | 0.815 M☉ (estimated) |
| Right ascension (J2000) | 23h 52m 25.4s |
| Declination (J2000) | +75° 32′ 40″ |
| Space velocity (relative to the Sun) | 16.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.36). Visible from the whole Northern Hemisphere and south to latitude 14° S. North of latitude 14° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1990. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 630 thousand years.
The Sun seen from there
From a planet around Gl 909A, the Sun would look like a star of magnitude 5.02, in the direction where our sky has the constellation Musca. 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.