Star · G8 III/IV
HD 22532
HD 22532 is a giant star of spectral type G8 III/IV in the constellation Horologium, 531.5 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 16732 |
|---|---|
| Constellation | Horologium |
| Distance | 531.5 light-years (163.0 pc) |
| Apparent magnitude | magnitude 7.85 |
| Absolute magnitude | magnitude 1.79 |
| Spectral type | G8 III/IV |
| Surface temperature | 5,040 K |
| Luminosity | 18.8 L☉ |
| Radius | 5.69 R☉ |
| Mass | 1.57 M☉ |
| Metallicity [Fe/H] | -0.19 |
| Right ascension (J2000) | 3h 35m 15.5s |
| Declination (J2000) | −49° 25′ 03″ |
| Space velocity (relative to the Sun) | 56.8 km/s |
In the sky
Too faint for the naked eye (magnitude 7.85); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 41° N. South of latitude 41° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1494. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 9.4 million years.
The Sun seen from there
From a planet around HD 22532, the Sun would look like a star of magnitude 10.89, in the direction where our sky has the constellation Boötes. It would be invisible to the naked eye.
Planets
- HD 22532 b 873-day orbit · 13.4 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.