Star · F4V
WASP-197
WASP-197 is a main-sequence star of spectral type F4V in the constellation Leo Minor, 1,559 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Leo Minor |
|---|---|
| Distance | 1,559 light-years (477.8 pc) |
| Apparent magnitude | magnitude 11.61 |
| Absolute magnitude | magnitude 3.21 |
| Spectral type | F4V |
| Surface temperature | 6,050 K |
| Luminosity | 5.9 L☉ |
| Radius | 2.11 R☉ |
| Mass | 1.36 M☉ |
| Age | 2.6 billion years |
| Metallicity [Fe/H] | 0.00 |
| Right ascension (J2000) | 10h 42m 31.4s |
| Declination (J2000) | +28° 11′ 55″ |
| Space velocity (relative to the Sun) | 23.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.61. Visible from the whole Northern Hemisphere and south to latitude 62° S. North of latitude 62° N it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 467. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 28 million years.
The Sun seen from there
From a planet around WASP-197, the Sun would look like a star of magnitude 13.23, in the direction where our sky has the constellation Piscis Austrinus. It would be invisible to the naked eye.
Planets
- WASP-197 b 5.17-day orbit · 14.4 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.