Star · K0II
HIP 101870
HIP 101870 is a bright giant star of spectral type K0II in the constellation Vulpecula, 1,393 light-years from the Sun.
| Constellation | Vulpecula |
|---|---|
| Distance | 1,393 light-years (427.1 pc) |
| Apparent magnitude | magnitude 5.91 |
| Absolute magnitude | magnitude −2.24 |
| Spectral type | K0II |
| Surface temperature | 4,860 K |
| Luminosity | 993 L☉ |
| Radius | 44.5 R☉ |
| Mass | 6.52 M☉ (estimated) |
| Right ascension (J2000) | 20h 38m 35.0s |
| Declination (J2000) | +23° 40′ 50″ |
| Space velocity (relative to the Sun) | 22.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.91). Visible from the whole Northern Hemisphere and south to latitude 66° S. North of latitude 66° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 633. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 25 million years.
The Sun seen from there
From a planet around HIP 101870, the Sun would look like a star of magnitude 12.98, in the direction where our sky has the constellation Pyxis. 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.