Star · K8V
K2-147
K2-147 is a main-sequence star of spectral type K8V in the constellation Sagittarius, 297.0 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Sagittarius |
|---|---|
| Distance | 297.0 light-years (91.1 pc) |
| Apparent magnitude | magnitude 13.99 |
| Absolute magnitude | magnitude 9.19 |
| Spectral type | K8V |
| Surface temperature | 3,690 K |
| Luminosity | 0.056 L☉ |
| Radius | 0.578 R☉ |
| Mass | 0.563 M☉ |
| Metallicity [Fe/H] | -0.02 |
| Right ascension (J2000) | 19h 35m 19.9s |
| Declination (J2000) | −28° 29′ 55″ |
| Space velocity (relative to the Sun) | 69.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.99. Visible from the whole Southern Hemisphere and north to latitude 62° N. South of latitude 62° S it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1729. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.3 million years.
The Sun seen from there
From a planet around K2-147, the Sun would look like a star of magnitude 9.63, in the direction where our sky has the constellation Gemini. It would be invisible to the naked eye.
Planets
- K2-147 b 0.962-day orbit · 1.47 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 96332 5.71 light-years
- HIP 96486 6.29 light-years
- HIP 96089 12.7 light-years
- HIP 95519 12.9 light-years
- HIP 95456 13.6 light-years
- HIP 95655 18.2 light-years
- HIP 95461 18.7 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.