Star · G8III
HIP 40107
HIP 40107 is a giant star of spectral type G8III in the constellation Hydra, 275.4 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 275.4 light-years (84.4 pc) |
| Apparent magnitude | magnitude 5.36 |
| Absolute magnitude | magnitude 0.73 |
| Spectral type | G8III |
| Surface temperature | 5,020 K |
| Luminosity | 59.7 L☉ |
| Radius | 10.2 R☉ |
| Mass | 2.92 M☉ (estimated) |
| Right ascension (J2000) | 8h 11m 33.0s |
| Declination (J2000) | −7° 46′ 21″ |
| Space velocity (relative to the Sun) | 23.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.36). Visible from the whole Southern Hemisphere and north to latitude 82° N. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1751. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.9 million years.
The Sun seen from there
From a planet around HIP 40107, the Sun would look like a star of magnitude 9.46, in the direction where our sky has the constellation Aquila. It would be invisible to the naked eye.
Neighbours
The catalogue has no other star 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.