Star · K0
HD 141399
HD 141399 is a main-sequence star of spectral type K0 in the constellation Boötes, 120.9 light-years from the Sun. It is orbited by 4 confirmed exoplanet(s).
| Other names | HIP 77301 |
|---|---|
| Constellation | Boötes |
| Distance | 120.9 light-years (37.1 pc) |
| Apparent magnitude | magnitude 7.21 |
| Absolute magnitude | magnitude 4.37 |
| Spectral type | K0 |
| Surface temperature | 5,600 K |
| Luminosity | 1.59 L☉ |
| Radius | 1.39 R☉ |
| Mass | 1.07 M☉ |
| Metallicity [Fe/H] | 0.35 |
| Right ascension (J2000) | 15h 46m 53.8s |
| Declination (J2000) | +46° 59′ 10″ |
| Space velocity (relative to the Sun) | 29.1 km/s |
In the sky
Too faint for the naked eye (magnitude 7.21); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 43° S. North of latitude 43° N it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1905. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.1 million years.
The Sun seen from there
From a planet around HD 141399, the Sun would look like a star of magnitude 7.67, in the direction where our sky has the constellation Horologium. It would be invisible to the naked eye.
Planets
- HD 141399 b 94.4-day orbit · 14.3 R⊕
- HD 141399 c 202-day orbit · 13.6 R⊕
- HD 141399 d 1,070-day orbit · 13.7 R⊕
- HD 141399 e 5,000-day orbit · 14.1 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 76568 4.37 light-years
- GJ 3940 8.36 light-years
- WISE J155254.84+503307.6 8.43 light-years
- HIP 79308 12.4 light-years
- SDSS J151506.11+443648.3 13.0 light-years
- HIP 78678 13.5 light-years
- HIP 79152 15.0 light-years
- TOI-1411 15.8 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.