Star · A
WASP-33
WASP-33 is a main-sequence star of spectral type A in the constellation Andromeda, 396.6 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 11397 |
|---|---|
| Constellation | Andromeda |
| Distance | 396.6 light-years (121.6 pc) |
| Apparent magnitude | magnitude 8.14 |
| Absolute magnitude | magnitude 2.72 |
| Spectral type | A |
| Surface temperature | 7,430 K |
| Luminosity | 6.6 L☉ |
| Radius | 1.44 R☉ |
| Mass | 1.5 M☉ |
| Metallicity [Fe/H] | 0.10 |
| Right ascension (J2000) | 2h 26m 51.1s |
| Declination (J2000) | +37° 33′ 02″ |
| Space velocity (relative to the Sun) | 5.8 km/s |
In the sky
Too faint for the naked eye (magnitude 8.14); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 52° S. North of latitude 52° N it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1629. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.0 million years.
The Sun seen from there
From a planet around WASP-33, the Sun would look like a star of magnitude 10.25, in the direction where our sky has the constellation Centaurus. It would be invisible to the naked eye.
Planets
- WASP-33 b 1.22-day orbit · 17.9 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.