Star · G3 V
HD 220689
HD 220689 is a main-sequence star of spectral type G3 V in the constellation Aquarius, 153.1 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 115662 |
|---|---|
| Constellation | Aquarius |
| Distance | 153.1 light-years (46.9 pc) |
| Apparent magnitude | magnitude 7.74 |
| Absolute magnitude | magnitude 4.38 |
| Spectral type | G3 V |
| Surface temperature | 5,920 K |
| Luminosity | 1.24 L☉ |
| Radius | 1.07 R☉ |
| Mass | 1.02 M☉ |
| Age | 4.6 billion years |
| Metallicity [Fe/H] | -0.07 |
| Right ascension (J2000) | 23h 25m 53.0s |
| Declination (J2000) | −20° 36′ 58″ |
| Space velocity (relative to the Sun) | 41.5 km/s |
In the sky
Too faint for the naked eye (magnitude 7.74); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 69° N. South of latitude 69° S it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1873. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.7 million years.
The Sun seen from there
From a planet around HD 220689, the Sun would look like a star of magnitude 8.19, in the direction where our sky has the constellation Leo. It would be invisible to the naked eye.
Planets
- HD 220689 b 2,270-day orbit · 13.7 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- PSO J350.4673-19.0783 4.83 light-years
- 98 Aqr 11.4 light-years
- HIP 115411 13.6 light-years
- HIP 117036 15.6 light-years
- HIP 116352 18.9 light-years
- HIP 116973 19.2 light-years
- ω² Aqr 19.8 light-years
- HIP 117905 19.9 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.