Star · K0III
30 Aqr
30 Aqr is a giant star of spectral type K0III in the constellation Aquarius, 303.2 light-years from the Sun.
| Other names | HIP 108868 |
|---|---|
| Constellation | Aquarius |
| Distance | 303.2 light-years (93.0 pc) |
| Apparent magnitude | magnitude 5.55 |
| Absolute magnitude | magnitude 0.71 |
| Spectral type | K0III |
| Surface temperature | 4,840 K |
| Luminosity | 66 L☉ |
| Radius | 11.5 R☉ |
| Mass | 3.01 M☉ (estimated) |
| Right ascension (J2000) | 22h 03m 16.5s |
| Declination (J2000) | −6° 31′ 21″ |
| Space velocity (relative to the Sun) | 44.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.55). Visible from the whole Southern Hemisphere and north to latitude 83° N. 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 1723. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.4 million years.
The Sun seen from there
From a planet around 30 Aqr, the Sun would look like a star of magnitude 9.67, in the direction where our sky has the constellation Leo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 108851 7.58 light-years
- HIP 109647 16.3 light-years
- HIP 107906 16.7 light-years
- HIP 109428 18.5 light-years
- HIP 109869 18.6 light-years
- HIP 109466 18.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.