Star · B7V
HIP 77900
HIP 77900 is a main-sequence star of spectral type B7V in the constellation Scorpius, 485.9 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Scorpius |
|---|---|
| Distance | 485.9 light-years (149.0 pc) |
| Apparent magnitude | magnitude 6.15 |
| Absolute magnitude | magnitude 0.28 |
| Spectral type | B7V |
| Surface temperature | 13,650 K |
| Luminosity | 108 L☉ |
| Radius | 2.82 R☉ |
| Mass | 3.46 M☉ |
| Right ascension (J2000) | 15h 54m 30.1s |
| Declination (J2000) | −27° 20′ 19″ |
| Space velocity (relative to the Sun) | 20.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.15). Visible from the whole Southern Hemisphere and north to latitude 63° N. South of latitude 63° 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 1540. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 8.6 million years.
The Sun seen from there
From a planet around HIP 77900, the Sun would look like a star of magnitude 10.70, in the direction where our sky has the constellation Taurus. It would be invisible to the naked eye.
Planets
- HIP 77900 b 12.1 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.