Star · K5V
Chaophraya
Chaophraya is a main-sequence star of spectral type K5V in the constellation Eridanus, 594.5 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | WASP-50 |
|---|---|
| Constellation | Eridanus |
| Distance | 594.5 light-years (182.3 pc) |
| Apparent magnitude | magnitude 11.55 |
| Absolute magnitude | magnitude 5.25 |
| Spectral type | K5V |
| Surface temperature | 5,400 K |
| Luminosity | 0.634 L☉ |
| Radius | 0.843 R☉ |
| Mass | 0.892 M☉ |
| Age | 7.0 billion years |
| Metallicity [Fe/H] | -0.12 |
| Right ascension (J2000) | 2h 54m 45.1s |
| Declination (J2000) | −10° 53′ 53″ |
| Space velocity (relative to the Sun) | 27.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.55. Visible from the whole Southern Hemisphere and north to latitude 79° N. South of latitude 79° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1432. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.
The Sun seen from there
From a planet around Chaophraya, the Sun would look like a star of magnitude 11.13, in the direction where our sky has the constellation Boötes. It would be invisible to the naked eye.
Planets
- WASP-50 b 1.96-day orbit · 13.1 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.