Star · M0III
K2-210
K2-210 is a giant star of spectral type M0III in the constellation Cetus, 581.2 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Cetus |
|---|---|
| Distance | 581.2 light-years (178.2 pc) |
| Apparent magnitude | magnitude 11.69 |
| Absolute magnitude | magnitude 5.44 |
| Spectral type | M0III |
| Surface temperature | 5,500 K |
| Luminosity | 0.564 L☉ |
| Radius | 0.89 R☉ |
| Mass | 0.912 M☉ |
| Metallicity [Fe/H] | 0.00 |
| Right ascension (J2000) | 1h 10m 33.8s |
| Declination (J2000) | +1° 34′ 42″ |
| Space velocity (relative to the Sun) | 65.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.69. Visible from the whole Northern Hemisphere and south to latitude 88° S. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1445. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 10 million years.
The Sun seen from there
From a planet around K2-210, the Sun would look like a star of magnitude 11.08, in the direction where our sky has the constellation Virgo. It would be invisible to the naked eye.
Planets
- K2-210 b 0.57-day orbit · 0.86 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.