Star · A0
HIP 117430
HIP 117430 is a main-sequence star of spectral type A0 in the constellation Cassiopeia, 606.4 light-years from the Sun.
| Constellation | Cassiopeia |
|---|---|
| Distance | 606.4 light-years (185.9 pc) |
| Apparent magnitude | magnitude 6.41 |
| Absolute magnitude | magnitude 0.06 |
| Spectral type | A0 |
| Surface temperature | 9,410 K |
| Luminosity | 102 L☉ |
| Radius | 3.79 R☉ |
| Mass | 3.4 M☉ (estimated) |
| Right ascension (J2000) | 23h 48m 39.0s |
| Declination (J2000) | +64° 52′ 35″ |
| Space velocity (relative to the Sun) | 18.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.41). Visible from the whole Northern Hemisphere and south to latitude 25° S. North of latitude 25° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1420. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.
The Sun seen from there
From a planet around HIP 117430, the Sun would look like a star of magnitude 11.18, in the direction where our sky has the constellation Musca. 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.