Star · F2
υ Sgr
υ Sgr is a giant star of spectral type F2 in the constellation Sagittarius, 1,563 light-years from the Sun.
| Other names | HIP 95176 |
|---|---|
| Constellation | Sagittarius |
| Distance | 1,563 light-years (479.2 pc) |
| Apparent magnitude | magnitude 4.52 |
| Absolute magnitude | magnitude −3.88 |
| Spectral type | F2 |
| Surface temperature | 9,240 K |
| Luminosity | 3,750 L☉ |
| Radius | 23.9 R☉ |
| Mass | 9.54 M☉ (estimated) |
| Right ascension (J2000) | 19h 21m 43.6s |
| Declination (J2000) | −15° 57′ 18″ |
| Space velocity (relative to the Sun) | 16.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.52). Visible from the whole Southern Hemisphere and north to latitude 74° N. South of latitude 74° S 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 463. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 28 million years.
The Sun seen from there
From a planet around υ Sgr, the Sun would look like a star of magnitude 13.23, in the direction where our sky has the constellation Gemini. 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.