Star · B2IV
ω¹ Cyg
ω¹ Cyg is a subgiant star of spectral type B2IV in the constellation Cygnus, 1,281 light-years from the Sun.
| Other names | HIP 101138 |
|---|---|
| Constellation | Cygnus |
| Distance | 1,281 light-years (392.8 pc) |
| Apparent magnitude | magnitude 4.94 |
| Absolute magnitude | magnitude −3.03 |
| Spectral type | B2IV |
| Surface temperature | 11,360 K |
| Luminosity | 2,390 L☉ |
| Radius | 12.6 R☉ |
| Mass | 8.39 M☉ (estimated) |
| Right ascension (J2000) | 20h 30m 03.5s |
| Declination (J2000) | +48° 57′ 06″ |
| Space velocity (relative to the Sun) | 31.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.94). Visible from the whole Northern Hemisphere and south to latitude 41° S. North of latitude 41° 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 745. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 23 million years.
The Sun seen from there
From a planet around ω¹ Cyg, the Sun would look like a star of magnitude 12.80, in the direction where our sky has the constellation Vela. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.