Star · G0V
HU Aqr
HU Aqr is a main-sequence star of spectral type G0V in the constellation Aquarius, 626.9 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Constellation | Aquarius |
|---|---|
| Distance | 626.9 light-years (192.2 pc) |
| Apparent magnitude | magnitude 16.18 |
| Absolute magnitude | magnitude 9.76 |
| Spectral type | G0V |
| Surface temperature | 5,950 K |
| Luminosity | 0.0112 L☉ |
| Radius | 0.0997 R☉ |
| Mass | 0.88 M☉ |
| Right ascension (J2000) | 21h 07m 58.1s |
| Declination (J2000) | −5° 17′ 42″ |
| Space velocity (relative to the Sun) | 89.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 16.18. Visible from the whole Southern Hemisphere and north to latitude 85° 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 1399. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.
The Sun seen from there
From a planet around HU Aqr, the Sun would look like a star of magnitude 11.25, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Planets
- HU Aqr AB b 2,390-day orbit · 12.8 R⊕
- HU Aqr AB c 4,370-day orbit · 12.9 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.