Star · K0
HD 135872
HD 135872 is a giant star of spectral type K0 in the constellation Libra, 268.8 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 74842 |
|---|---|
| Constellation | Libra |
| Distance | 268.8 light-years (82.4 pc) |
| Apparent magnitude | magnitude 7.28 |
| Absolute magnitude | magnitude 2.70 |
| Spectral type | K0 |
| Surface temperature | 4,990 K |
| Luminosity | 8.65 L☉ |
| Radius | 3.93 R☉ |
| Mass | 1.65 M☉ |
| Metallicity [Fe/H] | 0.09 |
| Right ascension (J2000) | 15h 17m 41.2s |
| Declination (J2000) | −5° 12′ 09″ |
| Space velocity (relative to the Sun) | 38.0 km/s |
In the sky
Too faint for the naked eye (magnitude 7.28); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 85° N. 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 1757. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.8 million years.
The Sun seen from there
From a planet around HD 135872, the Sun would look like a star of magnitude 9.41, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Planets
- HD 135872 b 2,420-day orbit · 12.8 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 74884 11.9 light-years
- HIP 74464 12.7 light-years
- HIP 75429 16.1 light-years
- HIP 74338 17.4 light-years
- HIP 74267 18.0 light-years
- HIP 73982 18.7 light-years
- HIP 75728 19.3 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.