Star · K0V
HD 149806
HD 149806 is a main-sequence star of spectral type K0V in the constellation Ophiuchus, 66.3 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 81375 |
|---|---|
| Constellation | Ophiuchus |
| Distance | 66.3 light-years (20.3 pc) |
| Apparent magnitude | magnitude 7.09 |
| Absolute magnitude | magnitude 5.55 |
| Spectral type | K0V |
| Surface temperature | 5,350 K |
| Luminosity | 0.569 L☉ |
| Radius | 0.89 R☉ |
| Mass | 0.93 M☉ |
| Age | 8.4 billion years |
| Metallicity [Fe/H] | 0.22 |
| Right ascension (J2000) | 16h 37m 08.4s |
| Declination (J2000) | +0° 15′ 15″ |
| Space velocity (relative to the Sun) | 15.7 km/s |
In the sky
Too faint for the naked eye (magnitude 7.09); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 90° N. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1960. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around HD 149806, the Sun would look like a star of magnitude 6.37, in the direction where our sky has the constellation Eridanus. It would be visible to the naked eye.
Planets
- HD 149806 b 16,500-day orbit · 12.3 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 654.1 8.25 light-years
- SIMP J1619275+031350 8.88 light-years
- GJ 3975 9.77 light-years
- GJ 3987 10.4 light-years
- WISEA J160516.79+002139.0 11.0 light-years
- DENIS-P J170548.38-051645.7 11.2 light-years
- GJ 3984 11.5 light-years
- SDSS J163022.92+081822.0 11.9 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.