Star · F7V
HD 142
HD 142 is a subgiant star of spectral type F7V in the constellation Phoenix, 85.4 light-years from the Sun. It is orbited by 3 confirmed exoplanet(s).
| Other names | Gl 4.2A · HIP 522 |
|---|---|
| Constellation | Phoenix |
| Distance | 85.4 light-years (26.2 pc) |
| Apparent magnitude | magnitude 5.70 |
| Absolute magnitude | magnitude 3.61 |
| Spectral type | F7V |
| Surface temperature | 6,250 K |
| Luminosity | 2.98 L☉ |
| Radius | 1.47 R☉ |
| Mass | 1.21 M☉ |
| Age | 3.1 billion years |
| Metallicity [Fe/H] | 0.09 |
| Right ascension (J2000) | 0h 06m 19.2s |
| Declination (J2000) | −49° 04′ 31″ |
| Space velocity (relative to the Sun) | 71.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.70). 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 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 1941. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.5 million years.
The Sun seen from there
From a planet around HD 142, the Sun would look like a star of magnitude 6.92, in the direction where our sky has the constellation Ursa Major. It would be invisible to the naked eye.
Planets
- HD 142 A d 108-day orbit · 10.9 R⊕
- HD 142 b 351-day orbit · 12.7 R⊕
- HD 142 c 10,200-day orbit · 12.4 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.