Star · G5 III
HD 219139
HD 219139 is a giant star of spectral type G5 III in the constellation Pegasus, 345.4 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 114641 |
|---|---|
| Constellation | Pegasus |
| Distance | 345.4 light-years (105.9 pc) |
| Apparent magnitude | magnitude 5.85 |
| Absolute magnitude | magnitude 0.73 |
| Spectral type | G5 III |
| Surface temperature | 4,830 K |
| Luminosity | 62.3 L☉ |
| Radius | 11.2 R☉ |
| Mass | 1.46 M☉ |
| Metallicity [Fe/H] | -0.20 |
| Right ascension (J2000) | 23h 13m 26.5s |
| Declination (J2000) | +11° 03′ 54″ |
| Space velocity (relative to the Sun) | 17.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.85). Visible from the whole Northern Hemisphere and south to latitude 79° S. North of latitude 79° 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 1681. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.1 million years.
The Sun seen from there
From a planet around HD 219139, the Sun would look like a star of magnitude 9.95, in the direction where our sky has the constellation Crater. It would be invisible to the naked eye.
Planets
- HD 219139 b 276-day orbit · 14 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.