Star · B9V
HIP 27747
HIP 27747 is a main-sequence star of spectral type B9V in the constellation Orion, 1,273 light-years from the Sun.
| Constellation | Orion |
|---|---|
| Distance | 1,273 light-years (390.2 pc) |
| Apparent magnitude | magnitude 5.96 |
| Absolute magnitude | magnitude −2.00 |
| Spectral type | B9V |
| Surface temperature | 6,170 K |
| Luminosity | 551 L☉ |
| Radius | 20.5 R☉ |
| Mass | 5.51 M☉ (estimated) |
| Right ascension (J2000) | 5h 52m 23.4s |
| Declination (J2000) | +19° 52′ 04″ |
| Space velocity (relative to the Sun) | 11.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.96). Visible from the whole Northern Hemisphere and south to latitude 70° S. North of latitude 70° N it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 753. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 23 million years.
The Sun seen from there
From a planet around HIP 27747, the Sun would look like a star of magnitude 12.79, in the direction where our sky has the constellation Sagittarius. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.