Star · F8
WASP-142
WASP-142 is a main-sequence star of spectral type F8 in the constellation Hydra, 2,384 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Hydra |
|---|---|
| Distance | 2,384 light-years (730.9 pc) |
| Apparent magnitude | magnitude 12.87 |
| Absolute magnitude | magnitude 3.55 |
| Spectral type | F8 |
| Surface temperature | 6,010 K |
| Luminosity | 3.26 L☉ |
| Radius | 1.64 R☉ |
| Mass | 1.33 M☉ |
| Age | 2.0 billion years |
| Metallicity [Fe/H] | 0.26 |
| Right ascension (J2000) | 9h 22m 01.5s |
| Declination (J2000) | −23° 56′ 46″ |
| Space velocity (relative to the Sun) | 76.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.87. Visible from the whole Southern Hemisphere and north to latitude 66° N. South of latitude 66° S it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around 359 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 42 million years.
The Sun seen from there
From a planet around WASP-142, the Sun would look like a star of magnitude 14.15, in the direction where our sky has the constellation Pegasus. It would be invisible to the naked eye.
Planets
- WASP-142 b 2.05-day orbit · 17.1 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.