Star · F8 V
HD 217786
HD 217786 is a main-sequence star of spectral type F8 V in the constellation Pisces, 179.3 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | HIP 113834 |
|---|---|
| Constellation | Pisces |
| Distance | 179.3 light-years (55.0 pc) |
| Apparent magnitude | magnitude 7.78 |
| Absolute magnitude | magnitude 4.08 |
| Spectral type | F8 V |
| Surface temperature | 5,970 K |
| Luminosity | 1.89 L☉ |
| Radius | 1.27 R☉ |
| Mass | 1.14 M☉ |
| Age | 7.6 billion years |
| Metallicity [Fe/H] | -0.14 |
| Right ascension (J2000) | 23h 03m 08.2s |
| Declination (J2000) | −0° 25′ 47″ |
| Space velocity (relative to the Sun) | 50.8 km/s |
In the sky
Too faint for the naked eye (magnitude 7.78); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 90° N. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1847. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.2 million years.
The Sun seen from there
From a planet around HD 217786, the Sun would look like a star of magnitude 8.53, in the direction where our sky has the constellation Leo. It would be invisible to the naked eye.
Planets
- HD 217786 c 2.52-day orbit · 2.61 R⊕
- HD 217786 b 1,300-day orbit · 12.3 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J225913.88-005158.2 3.35 light-years
- 2MASS J23004298+0200145 8.61 light-years
- HIP 114914 11.1 light-years
- HIP 114313 11.9 light-years
- HIP 112811 12.0 light-years
- SDSSp J225529.09-003433.4 16.4 light-years
- HIP 114677 16.4 light-years
- HIP 112662 17.4 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.