Star · F8 V
Rapeto
Rapeto is a subgiant star of spectral type F8 V in the constellation Scorpius, 157.9 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HD 153950 · HIP 83547 |
|---|---|
| Constellation | Scorpius |
| Distance | 157.9 light-years (48.4 pc) |
| Apparent magnitude | magnitude 7.39 |
| Absolute magnitude | magnitude 3.97 |
| Spectral type | F8 V |
| Surface temperature | 6,120 K |
| Luminosity | 2.22 L☉ |
| Radius | 1.28 R☉ |
| Mass | 1.25 M☉ |
| Age | 4.3 billion years |
| Metallicity [Fe/H] | -0.01 |
| Right ascension (J2000) | 17h 04m 30.9s |
| Declination (J2000) | −43° 18′ 35″ |
| Space velocity (relative to the Sun) | 52.9 km/s |
In the sky
Too faint for the naked eye (magnitude 7.39); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 47° N. South of latitude 47° S 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 1868. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.8 million years.
The Sun seen from there
From a planet around Rapeto, the Sun would look like a star of magnitude 8.25, in the direction where our sky has the constellation Auriga. It would be invisible to the naked eye.
Planets
- HD 153950 b 499-day orbit · 13.2 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 83415 9.20 light-years
- HIP 84164 15.4 light-years
- HIP 86415 19.2 light-years
- HIP 86542 19.2 light-years
- HIP 85326 19.3 light-years
- HIP 85342 19.4 light-years
- GJ 3970 20.0 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.