Star · F9
HD 220773
HD 220773 is a main-sequence star of spectral type F9 in the constellation Pegasus, 164.9 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 115697 |
|---|---|
| Constellation | Pegasus |
| Distance | 164.9 light-years (50.6 pc) |
| Apparent magnitude | magnitude 7.10 |
| Absolute magnitude | magnitude 3.58 |
| Spectral type | F9 |
| Surface temperature | 5,940 K |
| Luminosity | 3.15 L☉ |
| Radius | 1.68 R☉ |
| Mass | 1.16 M☉ |
| Age | 4.4 billion years |
| Metallicity [Fe/H] | 0.09 |
| Right ascension (J2000) | 23h 26m 27.5s |
| Declination (J2000) | +8° 38′ 38″ |
| Space velocity (relative to the Sun) | 65.5 km/s |
In the sky
Too faint for the naked eye (magnitude 7.10); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 81° S. 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 1861. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.9 million years.
The Sun seen from there
From a planet around HD 220773, the Sun would look like a star of magnitude 8.35, in the direction where our sky has the constellation Crater. It would be invisible to the naked eye.
Planets
- HD 220773 b 3,720-day orbit · 13.6 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- θ Psc 8.12 light-years
- HIP 115066 13.1 light-years
- PSO J348.8808+06.2873 13.2 light-years
- HIP 114588 16.8 light-years
- HIP 117235 17.0 light-years
- HIP 115819 17.2 light-years
- HIP 115618 17.4 light-years
- HIP 117461 18.1 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.