Star · G0
WASP-171
WASP-171 is a main-sequence star of spectral type G0 in the constellation Centaurus, 2,472 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Centaurus |
|---|---|
| Distance | 2,472 light-years (757.8 pc) |
| Apparent magnitude | magnitude 12.61 |
| Absolute magnitude | magnitude 3.21 |
| Spectral type | G0 |
| Surface temperature | 5,970 K |
| Luminosity | 4.7 L☉ |
| Radius | 1.64 R☉ |
| Mass | 1.17 M☉ |
| Age | 5.9 billion years |
| Metallicity [Fe/H] | 0.04 |
| Right ascension (J2000) | 11h 27m 22.8s |
| Declination (J2000) | −44° 05′ 19″ |
| Space velocity (relative to the Sun) | 31.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.61. Visible from the whole Southern Hemisphere and north to latitude 46° N. South of latitude 46° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around 447 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 44 million years.
The Sun seen from there
From a planet around WASP-171, the Sun would look like a star of magnitude 14.23, in the direction where our sky has the constellation Andromeda. It would be invisible to the naked eye.
Planets
- WASP-171 b 3.82-day orbit · 11 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.