Star · M3.0 V
K2-146
K2-146 is a main-sequence star of spectral type M3.0 V in the constellation Cancer, 262.7 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Constellation | Cancer |
|---|---|
| Distance | 262.7 light-years (80.5 pc) |
| Apparent magnitude | magnitude 16.19 |
| Absolute magnitude | magnitude 11.66 |
| Spectral type | M3.0 V |
| Surface temperature | 3,390 K |
| Luminosity | 0.015 L☉ |
| Radius | 0.33 R☉ |
| Mass | 0.331 M☉ |
| Age | 5.0 billion years |
| Metallicity [Fe/H] | -0.02 |
| Right ascension (J2000) | 8h 40m 06.4s |
| Declination (J2000) | +19° 05′ 32″ |
| Space velocity (relative to the Sun) | 49.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 16.19. Visible from the whole Northern Hemisphere and south to latitude 71° S. North of latitude 71° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1763. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.7 million years.
The Sun seen from there
From a planet around K2-146, the Sun would look like a star of magnitude 9.36, in the direction where our sky has the constellation Capricornus. It would be invisible to the naked eye.
Planets
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J083652.36+183544.9 4.46 light-years
- SDSS J083759.75+195727.7 4.83 light-years
- SDSS J083545.33+222430.9 16.2 light-years
- SDSS J082502.70+172249.6 18.7 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.