Star · B9 V
HIP 78530
HIP 78530 is a main-sequence star of spectral type B9 V in the constellation Scorpius, 439.3 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Scorpius |
|---|---|
| Distance | 439.3 light-years (134.7 pc) |
| Apparent magnitude | magnitude 7.19 |
| Absolute magnitude | magnitude 1.54 |
| Spectral type | B9 V |
| Surface temperature | 10,500 K |
| Luminosity | 23.4 L☉ |
| Radius | 2.11 R☉ |
| Mass | 2.5 M☉ |
| Age | 0.0 billion years |
| Metallicity [Fe/H] | -0.50 |
| Right ascension (J2000) | 16h 01m 55.5s |
| Declination (J2000) | −21° 58′ 49″ |
| Space velocity (relative to the Sun) | 17.9 km/s |
In the sky
Too faint for the naked eye (magnitude 7.19); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 68° N. South of latitude 68° S 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 1587. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.8 million years.
The Sun seen from there
From a planet around HIP 78530, the Sun would look like a star of magnitude 10.48, in the direction where our sky has the constellation Taurus. It would be invisible to the naked eye.
Planets
- HIP 78530 b 12 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.