Star · F1 V
WASP-172
WASP-172 is a main-sequence star of spectral type F1 V in the constellation Centaurus, 1,722 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Centaurus |
|---|---|
| Distance | 1,722 light-years (527.9 pc) |
| Apparent magnitude | magnitude 11.04 |
| Absolute magnitude | magnitude 2.43 |
| Spectral type | F1 V |
| Surface temperature | 6,900 K |
| Luminosity | 8.6 L☉ |
| Radius | 1.91 R☉ |
| Mass | 1.49 M☉ |
| Age | 1.8 billion years |
| Metallicity [Fe/H] | -0.10 |
| Right ascension (J2000) | 13h 17m 44.1s |
| Declination (J2000) | −47° 14′ 15″ |
| Space velocity (relative to the Sun) | 44.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.04. Visible from the whole Southern Hemisphere and north to latitude 43° N. South of latitude 43° S it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 304. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 31 million years.
The Sun seen from there
From a planet around WASP-172, the Sun would look like a star of magnitude 13.44, in the direction where our sky has the constellation Andromeda. It would be invisible to the naked eye.
Planets
- WASP-172 b 5.48-day orbit · 17.6 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.