Star · G0 IV
K2-99
K2-99 is a main-sequence star of spectral type G0 IV in the constellation Virgo, 1,688 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Constellation | Virgo |
|---|---|
| Distance | 1,688 light-years (517.6 pc) |
| Apparent magnitude | magnitude 11.22 |
| Absolute magnitude | magnitude 2.65 |
| Spectral type | G0 IV |
| Surface temperature | 6,070 K |
| Luminosity | 7.93 L☉ |
| Radius | 2.55 R☉ |
| Mass | 1.44 M☉ |
| Age | 3.7 billion years |
| Metallicity [Fe/H] | 0.20 |
| Right ascension (J2000) | 13h 55m 05.7s |
| Declination (J2000) | −5° 26′ 33″ |
| Space velocity (relative to the Sun) | 5.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.22. Visible from the whole Southern Hemisphere and north to latitude 85° N. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 338. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 30 million years.
The Sun seen from there
From a planet around K2-99, the Sun would look like a star of magnitude 13.40, in the direction where our sky has the constellation Pisces. It would be invisible to the naked eye.
Planets
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.