Star · K0
HD 102272
HD 102272 is a giant star of spectral type K0 in the constellation Leo, 1,156 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 57428 |
|---|---|
| Constellation | Leo |
| Distance | 1,156 light-years (354.5 pc) |
| Apparent magnitude | magnitude 8.69 |
| Absolute magnitude | magnitude 0.94 |
| Spectral type | K0 |
| Surface temperature | 4,790 K |
| Luminosity | 45.9 L☉ |
| Radius | 10.3 R☉ |
| Mass | 1.45 M☉ |
| Metallicity [Fe/H] | -0.41 |
| Right ascension (J2000) | 11h 46m 23.5s |
| Declination (J2000) | +14° 07′ 26″ |
| Space velocity (relative to the Sun) | 21.3 km/s |
In the sky
Too faint for the naked eye (magnitude 8.69); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 76° S. North of latitude 76° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 870. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 21 million years.
The Sun seen from there
From a planet around HD 102272, the Sun would look like a star of magnitude 12.58, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Planets
- HD 102272 b 128-day orbit · 12.9 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.