Star · F8 V
HD 169830
HD 169830 is a main-sequence star of spectral type F8 V in the constellation Sagittarius, 120.1 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | HIP 90485 |
|---|---|
| Constellation | Sagittarius |
| Distance | 120.1 light-years (36.8 pc) |
| Apparent magnitude | magnitude 5.90 |
| Absolute magnitude | magnitude 3.07 |
| Spectral type | F8 V |
| Surface temperature | 6,300 K |
| Luminosity | 4.59 L☉ |
| Radius | 1.94 R☉ |
| Mass | 1.17 M☉ |
| Age | 2.2 billion years |
| Metallicity [Fe/H] | 0.21 |
| Right ascension (J2000) | 18h 27m 49.5s |
| Declination (J2000) | −29° 49′ 01″ |
| Space velocity (relative to the Sun) | 17.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.90). Visible from the whole Southern Hemisphere and north to latitude 60° N. South of latitude 60° S it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1906. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.1 million years.
The Sun seen from there
From a planet around HD 169830, the Sun would look like a star of magnitude 7.66, in the direction where our sky has the constellation Auriga. It would be invisible to the naked eye.
Planets
- HD 169830 b 226-day orbit · 13.2 R⊕
- HD 169830 c 1,820-day orbit · 12.6 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.