Star · G0V
WASP-102
WASP-102 is a main-sequence star of spectral type G0V in the constellation Pegasus, 1,747 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Pegasus |
|---|---|
| Distance | 1,747 light-years (535.7 pc) |
| Apparent magnitude | magnitude 12.67 |
| Absolute magnitude | magnitude 4.03 |
| Spectral type | G0V |
| Surface temperature | 5,990 K |
| Luminosity | 2.28 L☉ |
| Radius | 1.38 R☉ |
| Mass | 1.08 M☉ |
| Age | 0.7 billion years |
| Metallicity [Fe/H] | -0.20 |
| Right ascension (J2000) | 22h 25m 51.4s |
| Declination (J2000) | +15° 51′ 24″ |
| Space velocity (relative to the Sun) | 69.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.67. Visible from the whole Northern Hemisphere and south to latitude 74° S. North of latitude 74° N it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 279. 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-102, the Sun would look like a star of magnitude 13.47, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Planets
- WASP-102 b 2.71-day orbit · 14.9 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.