Star · G3V
K2-7
K2-7 is a main-sequence star of spectral type G3V in the constellation Leo, 2,409 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Leo |
|---|---|
| Distance | 2,409 light-years (738.6 pc) |
| Apparent magnitude | magnitude 13.45 |
| Absolute magnitude | magnitude 4.11 |
| Spectral type | G3V |
| Surface temperature | 5,700 K |
| Luminosity | 2.24 L☉ |
| Radius | 1.53 R☉ |
| Mass | 1.06 M☉ |
| Age | 8.6 billion years |
| Metallicity [Fe/H] | 0.05 |
| Right ascension (J2000) | 11h 08m 22.5s |
| Declination (J2000) | −1° 03′ 57″ |
| Space velocity (relative to the Sun) | 84.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.45. Visible from the whole Southern Hemisphere and north to latitude 89° N. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around 384 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 43 million years.
The Sun seen from there
From a planet around K2-7, the Sun would look like a star of magnitude 14.17, in the direction where our sky has the constellation Pisces. It would be invisible to the naked eye.
Planets
- K2-7 b 28.7-day orbit · 4.04 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.