Star · G5
HD 220197
HD 220197 is a main-sequence star of spectral type G5 in the constellation Pegasus, 211.0 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 115359 |
|---|---|
| Constellation | Pegasus |
| Distance | 211.0 light-years (64.7 pc) |
| Apparent magnitude | magnitude 8.92 |
| Absolute magnitude | magnitude 4.87 |
| Spectral type | G5 |
| Surface temperature | 5,680 K |
| Luminosity | 0.992 L☉ |
| Radius | 0.98 R☉ |
| Mass | 0.91 M☉ |
| Age | 10.2 billion years |
| Metallicity [Fe/H] | -0.55 |
| Right ascension (J2000) | 23h 21m 58.3s |
| Declination (J2000) | +16° 37′ 57″ |
| Space velocity (relative to the Sun) | 132.0 km/s |
In the sky
Too faint for the naked eye (magnitude 8.92); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 73° S. North of latitude 73° N it never sets. 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 1815. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.7 million years.
The Sun seen from there
From a planet around HD 220197, the Sun would look like a star of magnitude 8.88, in the direction where our sky has the constellation Crater. It would be invisible to the naked eye.
Planets
- HD 220197 b 1,730-day orbit · 9.32 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 115288 3.44 light-years
- HIP 114450 12.9 light-years
- HIP 116011 15.7 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.