Star · B9V
HIP 78603
HIP 78603 is a main-sequence star of spectral type B9V in the constellation Triangulum Australe, 349.1 light-years from the Sun.
| Constellation | Triangulum Australe |
|---|---|
| Distance | 349.1 light-years (107.0 pc) |
| Apparent magnitude | magnitude 6.25 |
| Absolute magnitude | magnitude 1.10 |
| Spectral type | B9V |
| Surface temperature | 10,320 K |
| Luminosity | 44.9 L☉ |
| Radius | 2.1 R☉ |
| Mass | 2.69 M☉ (estimated) |
| Right ascension (J2000) | 16h 02m 52.5s |
| Declination (J2000) | −62° 32′ 30″ |
| Space velocity (relative to the Sun) | 21.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.25). Visible from the whole Southern Hemisphere and north to latitude 27° N. South of latitude 27° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1677. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.2 million years.
The Sun seen from there
From a planet around HIP 78603, the Sun would look like a star of magnitude 9.98, in the direction where our sky has the constellation Camelopardalis. 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.