Star · A3
μ Aqr
μ Aqr is a main-sequence star of spectral type A3 in the constellation Aquarius, 144.3 light-years from the Sun.
| Other names | HIP 103045 |
|---|---|
| Constellation | Aquarius |
| Distance | 144.3 light-years (44.2 pc) |
| Apparent magnitude | magnitude 4.73 |
| Absolute magnitude | magnitude 1.50 |
| Spectral type | A3 |
| Surface temperature | 7,310 K |
| Luminosity | 21.5 L☉ |
| Radius | 2.9 R☉ |
| Mass | 2.18 M☉ (estimated) |
| Right ascension (J2000) | 20h 52m 39.2s |
| Declination (J2000) | −8° 58′ 59″ |
| Space velocity (relative to the Sun) | 13.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.73). Visible from the whole Southern Hemisphere and north to latitude 81° 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 1882. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.6 million years.
The Sun seen from there
From a planet around μ Aqr, the Sun would look like a star of magnitude 8.06, in the direction where our sky has the constellation Cancer. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 103077 6.53 light-years
- HIP 104331 9.94 light-years
- HIP 102664 12.3 light-years
- HIP 101852 14.4 light-years
- HIP 103349 14.8 light-years
- SDSS J204317.69-155103.4 18.4 light-years
- HIP 103972 18.7 light-years
- HIP 105504 19.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.