Star · G9II
HIP 27900
HIP 27900 is a bright giant star of spectral type G9II in the constellation Orion, 1,521 light-years from the Sun.
| Constellation | Orion |
|---|---|
| Distance | 1,521 light-years (466.2 pc) |
| Apparent magnitude | magnitude 6.13 |
| Absolute magnitude | magnitude −2.21 |
| Spectral type | G9II |
| Surface temperature | 3,940 K |
| Luminosity | 2,000 L☉ |
| Radius | 95.9 R☉ |
| Mass | 7.97 M☉ (estimated) |
| Right ascension (J2000) | 5h 54m 13.3s |
| Declination (J2000) | +10° 35′ 11″ |
| Space velocity (relative to the Sun) | 19.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.13). Visible from the whole Northern Hemisphere and south to latitude 79° S. North of latitude 79° 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 505. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 27 million years.
The Sun seen from there
From a planet around HIP 27900, the Sun would look like a star of magnitude 13.17, in the direction where our sky has the constellation Serpens. 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.