Star · G8III
μ¹ Gru
μ¹ Gru is a giant star of spectral type G8III in the constellation Grus, 349.5 light-years from the Sun.
| Other names | HIP 109908 |
|---|---|
| Constellation | Grus |
| Distance | 349.5 light-years (107.1 pc) |
| Apparent magnitude | magnitude 4.79 |
| Absolute magnitude | magnitude −0.36 |
| Spectral type | G8III |
| Surface temperature | 5,310 K |
| Luminosity | 145 L☉ |
| Radius | 14.2 R☉ |
| Mass | 3.77 M☉ (estimated) |
| Right ascension (J2000) | 22h 15m 36.9s |
| Declination (J2000) | −41° 20′ 48″ |
| Space velocity (relative to the Sun) | 30.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.79). Visible from the whole Southern Hemisphere and north to latitude 49° N. South of latitude 49° S 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 1677. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.2 million years.
The Sun seen from there
From a planet around μ¹ Gru, the Sun would look like a star of magnitude 9.98, in the direction where our sky has the constellation Leo Minor. 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.