Star · K1 III
HD 154391
HD 154391 is a giant star of spectral type K1 III in the constellation Draco, 331.3 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 83289 |
|---|---|
| Constellation | Draco |
| Distance | 331.3 light-years (101.6 pc) |
| Apparent magnitude | magnitude 6.16 |
| Absolute magnitude | magnitude 1.13 |
| Spectral type | K1 III |
| Surface temperature | 4,910 K |
| Luminosity | 38.1 L☉ |
| Radius | 8.56 R☉ |
| Mass | 2.07 M☉ |
| Age | 1.1 billion years |
| Metallicity [Fe/H] | 0.10 |
| Right ascension (J2000) | 17h 01m 16.9s |
| Declination (J2000) | +60° 38′ 56″ |
| Space velocity (relative to the Sun) | 32.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.16). Visible from the whole Northern Hemisphere and south to latitude 29° S. North of latitude 29° N it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1695. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.9 million years.
The Sun seen from there
From a planet around HD 154391, the Sun would look like a star of magnitude 9.86, in the direction where our sky has the constellation Dorado. It would be invisible to the naked eye.
Planets
- HD 154391 b 5,160-day orbit · 12.5 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.