Star · G8III
ρ Cyg
ρ Cyg is a giant star of spectral type G8III in the constellation Cygnus, 125.8 light-years from the Sun.
| Other names | HIP 106481 |
|---|---|
| Constellation | Cygnus |
| Distance | 125.8 light-years (38.6 pc) |
| Apparent magnitude | magnitude 3.98 |
| Absolute magnitude | magnitude 1.05 |
| Spectral type | G8III |
| Surface temperature | 5,040 K |
| Luminosity | 44 L☉ |
| Radius | 8.71 R☉ |
| Mass | 2.68 M☉ (estimated) |
| Right ascension (J2000) | 21h 33m 58.8s |
| Declination (J2000) | +45° 35′ 30″ |
| Space velocity (relative to the Sun) | 18.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 3.98). Visible from the whole Northern Hemisphere and south to latitude 44° S. North of latitude 44° N it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1900. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.2 million years.
The Sun seen from there
From a planet around ρ Cyg, the Sun would look like a star of magnitude 7.76, in the direction where our sky has the constellation Vela. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 4233 14.7 light-years
- HIP 105769 15.1 light-years
- HIP 107822 16.2 light-years
- HIP 108391 17.4 light-years
- HIP 108774 18.1 light-years
- HIP 103502 18.6 light-years
- HIP 109303 19.0 light-years
- HIP 103641 19.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.