Star · G4
K2-406
K2-406 is a main-sequence star of spectral type G4 in the constellation Libra, 278.4 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Libra |
|---|---|
| Distance | 278.4 light-years (85.4 pc) |
| Apparent magnitude | magnitude 9.55 |
| Absolute magnitude | magnitude 4.89 |
| Spectral type | G4 |
| Surface temperature | 5,780 K |
| Luminosity | 0.872 L☉ |
| Radius | 0.961 R☉ |
| Mass | 0.798 M☉ |
| Metallicity [Fe/H] | -0.04 |
| Right ascension (J2000) | 15h 23m 33.0s |
| Declination (J2000) | −25° 22′ 15″ |
| Space velocity (relative to the Sun) | 15.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.55. Visible from the whole Southern Hemisphere and north to latitude 65° N. South of latitude 65° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1748. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.9 million years.
The Sun seen from there
From a planet around K2-406, the Sun would look like a star of magnitude 9.49, in the direction where our sky has the constellation Aries. It would be invisible to the naked eye.
Planets
- K2-406 b 22.5-day orbit · 4.6 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 74840 7.75 light-years
- HIP 75092 11.4 light-years
- HIP 75640 18.3 light-years
- HIP 76201 19.0 light-years
- HIP 76782 19.5 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.