Star · G0I
γ¹ Sgr
γ¹ Sgr is a supergiant star of spectral type G0I in the constellation Sagittarius, 1,379 light-years from the Sun.
| Other names | HIP 88567 |
|---|---|
| Constellation | Sagittarius |
| Distance | 1,379 light-years (422.8 pc) |
| Apparent magnitude | magnitude 4.66 |
| Absolute magnitude | magnitude −3.47 |
| Spectral type | G0I |
| Surface temperature | 5,360 K |
| Luminosity | 2,510 L☉ |
| Radius | 58.1 R☉ |
| Mass | 8.51 M☉ (estimated) |
| Right ascension (J2000) | 18h 05m 01.2s |
| Declination (J2000) | −29° 34′ 48″ |
| Space velocity (relative to the Sun) | 35.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.66). Visible from the whole Southern Hemisphere and north to latitude 60° N. South of latitude 60° S it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 647. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 24 million years.
The Sun seen from there
From a planet around γ¹ Sgr, the Sun would look like a star of magnitude 12.96, in the direction where our sky has the constellation Auriga. 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.