Star · K5e
CT Cha
CT Cha is a main-sequence star of spectral type K5e in the constellation Chamaeleon, 622.1 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Chamaeleon |
|---|---|
| Distance | 622.1 light-years (190.7 pc) |
| Apparent magnitude | magnitude 12.34 |
| Absolute magnitude | magnitude 5.94 |
| Spectral type | K5e |
| Surface temperature | 4,400 K |
| Luminosity | 0.791 L☉ |
| Radius | 1.68 R☉ |
| Mass | 0.917 M☉ |
| Age | 0.0 billion years |
| Metallicity [Fe/H] | -0.56 |
| Right ascension (J2000) | 11h 04m 09.0s |
| Declination (J2000) | −76° 27′ 19″ |
| Space velocity (relative to the Sun) | 20.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.34. Visible from the whole Southern Hemisphere and north to latitude 14° N. South of latitude 14° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1404. 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 CT Cha, the Sun would look like a star of magnitude 11.23, in the direction where our sky has the constellation Cepheus. It would be invisible to the naked eye.
Planets
- CT Cha b 24.7 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.