Star · B9V
HD 169142
HD 169142 is a main-sequence star of spectral type B9V in the constellation Sagittarius, 374.7 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Sagittarius |
|---|---|
| Distance | 374.7 light-years (114.9 pc) |
| Apparent magnitude | magnitude 8.19 |
| Absolute magnitude | magnitude 2.89 |
| Spectral type | B9V |
| Surface temperature | 7,250 K |
| Luminosity | 5.87 L☉ |
| Radius | 1.54 R☉ |
| Mass | 1.85 M☉ |
| Age | 0.0 billion years |
| Right ascension (J2000) | 18h 24m 29.8s |
| Declination (J2000) | −29° 46′ 49″ |
| Space velocity (relative to the Sun) | 20.7 km/s |
In the sky
Too faint for the naked eye (magnitude 8.19); binoculars will find it. 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 1651. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.6 million years.
The Sun seen from there
From a planet around HD 169142, the Sun would look like a star of magnitude 10.13, in the direction where our sky has the constellation Auriga. It would be invisible to the naked eye.
Planets
- HD 169142 b 13.1 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.