Star · K2III
HIP 109303
HIP 109303 is a giant star of spectral type K2III in the constellation Lacerta, 138.6 light-years from the Sun.
| Constellation | Lacerta |
|---|---|
| Distance | 138.6 light-years (42.5 pc) |
| Apparent magnitude | magnitude 6.11 |
| Absolute magnitude | magnitude 2.97 |
| Spectral type | K2III |
| Surface temperature | 5,390 K |
| Luminosity | 6.61 L☉ |
| Radius | 2.94 R☉ |
| Mass | 1.6 M☉ (estimated) |
| Right ascension (J2000) | 22h 08m 40.8s |
| Declination (J2000) | +45° 44′ 32″ |
| Space velocity (relative to the Sun) | 37.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.11). Visible from the whole Northern Hemisphere and south to latitude 44° S. North of latitude 44° N it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1887. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.5 million years.
The Sun seen from there
From a planet around HIP 109303, the Sun would look like a star of magnitude 7.97, in the direction where our sky has the constellation Vela. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.