Star · G8III
HIP 40772
HIP 40772 is a giant star of spectral type G8III in the constellation Ursa Major, 440.6 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 440.6 light-years (135.1 pc) |
| Apparent magnitude | magnitude 5.73 |
| Absolute magnitude | magnitude 0.08 |
| Spectral type | G8III |
| Surface temperature | 5,020 K |
| Luminosity | 109 L☉ |
| Radius | 13.8 R☉ |
| Mass | 3.47 M☉ (estimated) |
| Right ascension (J2000) | 8h 19m 17.1s |
| Declination (J2000) | +62° 30′ 26″ |
| Space velocity (relative to the Sun) | 18.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.73). Visible from the whole Northern Hemisphere and south to latitude 27° S. North of latitude 27° N it never sets. 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 1585. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.8 million years.
The Sun seen from there
From a planet around HIP 40772, the Sun would look like a star of magnitude 10.48, in the direction where our sky has the constellation Pavo. 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.