Star · A0V
HIP 87813
HIP 87813 is a main-sequence star of spectral type A0V in the constellation Serpens, 255.9 light-years from the Sun.
| Constellation | Serpens |
|---|---|
| Distance | 255.9 light-years (78.5 pc) |
| Apparent magnitude | magnitude 5.93 |
| Absolute magnitude | magnitude 1.46 |
| Spectral type | A0V |
| Surface temperature | 9,840 K |
| Luminosity | 30 L☉ |
| Radius | 1.89 R☉ |
| Mass | 2.4 M☉ (estimated) |
| Right ascension (J2000) | 17h 56m 19.0s |
| Declination (J2000) | −15° 48′ 45″ |
| Space velocity (relative to the Sun) | 36.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.93). Visible from the whole Southern Hemisphere and north to latitude 74° N. South of latitude 74° S it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1770. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.5 million years.
The Sun seen from there
From a planet around HIP 87813, the Sun would look like a star of magnitude 9.30, in the direction where our sky has the constellation Orion. 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.