Star · A1 IV-V
WASP-178
WASP-178 is a main-sequence star of spectral type A1 IV-V in the constellation Lupus, 1,345 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Lupus |
|---|---|
| Distance | 1,345 light-years (412.4 pc) |
| Apparent magnitude | magnitude 9.96 |
| Absolute magnitude | magnitude 1.88 |
| Spectral type | A1 IV-V |
| Surface temperature | 9,360 K |
| Luminosity | 16.4 L☉ |
| Radius | 1.67 R☉ |
| Mass | 2.07 M☉ |
| Age | 0.4 billion years |
| Metallicity [Fe/H] | 0.21 |
| Right ascension (J2000) | 15h 09m 04.9s |
| Declination (J2000) | −42° 42′ 18″ |
| Space velocity (relative to the Sun) | 33.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.96. Visible from the whole Southern Hemisphere and north to latitude 47° N. South of latitude 47° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 681. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 24 million years.
The Sun seen from there
From a planet around WASP-178, the Sun would look like a star of magnitude 12.91, in the direction where our sky has the constellation Perseus. It would be invisible to the naked eye.
Planets
- WASP-178 b 3.34-day orbit · 20.3 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.