Star · K V
HD 15906
HD 15906 is a main-sequence star of spectral type K V in the constellation Cetus, 149.2 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | HIP 11865 |
|---|---|
| Constellation | Cetus |
| Distance | 149.2 light-years (45.7 pc) |
| Apparent magnitude | magnitude 9.78 |
| Absolute magnitude | magnitude 6.48 |
| Spectral type | K V |
| Surface temperature | 4,760 K |
| Luminosity | 0.27 L☉ |
| Radius | 0.762 R☉ |
| Mass | 0.79 M☉ |
| Metallicity [Fe/H] | 0.02 |
| Right ascension (J2000) | 2h 33m 05.3s |
| Declination (J2000) | −10° 21′ 07″ |
| Space velocity (relative to the Sun) | 42.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.78. Visible from the whole Southern Hemisphere and north to latitude 80° N. South of latitude 80° S it never sets. 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 1877. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.6 million years.
The Sun seen from there
From a planet around HD 15906, the Sun would look like a star of magnitude 8.13, in the direction where our sky has the constellation Boötes. It would be invisible to the naked eye.
Planets
- HD 15906 b 10.9-day orbit · 2.24 R⊕
- HD 15906 c 21.6-day orbit · 2.93 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J023547.56-084919.8 4.79 light-years
- HIP 10532 12.5 light-years
- HIP 12562 12.9 light-years
- HIP 13681 16.6 light-years
- HIP 10365 17.2 light-years
- CFBDS J025718.08-124853.1 17.3 light-years
- CFBDS J022644.65-062522.0 18.0 light-years
- SDSS J020551.36-075925.0 18.6 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.