Star · G8 III
HD 79181
HD 79181 is a giant star of spectral type G8 III in the constellation Hydra, 336.7 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 45158 |
|---|---|
| Constellation | Hydra |
| Distance | 336.7 light-years (103.2 pc) |
| Apparent magnitude | magnitude 5.72 |
| Absolute magnitude | magnitude 0.65 |
| Spectral type | G8 III |
| Surface temperature | 4,860 K |
| Luminosity | 61.6 L☉ |
| Radius | 11.1 R☉ |
| Mass | 1.28 M☉ |
| Metallicity [Fe/H] | -0.28 |
| Right ascension (J2000) | 9h 11m 58.7s |
| Declination (J2000) | −19° 44′ 51″ |
| Space velocity (relative to the Sun) | 35.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.72). Visible from the whole Southern Hemisphere and north to latitude 70° N. South of latitude 70° S it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1689. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.0 million years.
The Sun seen from there
From a planet around HD 79181, the Sun would look like a star of magnitude 9.90, in the direction where our sky has the constellation Pegasus. It would be invisible to the naked eye.
Planets
- HD 79181 b 273-day orbit · 14.1 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.