Star · K0III
HIP 27939
HIP 27939 is a giant star of spectral type K0III in the constellation Orion, 1,304 light-years from the Sun.
| Constellation | Orion |
|---|---|
| Distance | 1,304 light-years (399.8 pc) |
| Apparent magnitude | magnitude 5.99 |
| Absolute magnitude | magnitude −2.02 |
| Spectral type | K0III |
| Surface temperature | 4,070 K |
| Luminosity | 1,460 L☉ |
| Radius | 76.7 R☉ |
| Mass | 7.28 M☉ (estimated) |
| Right ascension (J2000) | 5h 54m 44.0s |
| Declination (J2000) | +0° 58′ 07″ |
| Space velocity (relative to the Sun) | 22.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.99). Visible from the whole Northern Hemisphere and south to latitude 89° S. 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 722. 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 27939, the Sun would look like a star of magnitude 12.84, in the direction where our sky has the constellation Ophiuchus. 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.