Star · A3V
HIP 78045
HIP 78045 is a main-sequence star of spectral type A3V in the constellation Triangulum Australe, 227.0 light-years from the Sun.
| Constellation | Triangulum Australe |
|---|---|
| Distance | 227.0 light-years (69.6 pc) |
| Apparent magnitude | magnitude 5.76 |
| Absolute magnitude | magnitude 1.55 |
| Spectral type | A3V |
| Surface temperature | 9,160 K |
| Luminosity | 25 L☉ |
| Radius | 1.99 R☉ |
| Mass | 2.28 M☉ (estimated) |
| Right ascension (J2000) | 15h 56m 05.9s |
| Declination (J2000) | −60° 28′ 57″ |
| Space velocity (relative to the Sun) | 35.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.76). Visible from the whole Southern Hemisphere and north to latitude 30° N. South of latitude 30° 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 1799. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.0 million years.
The Sun seen from there
From a planet around HIP 78045, the Sun would look like a star of magnitude 9.04, in the direction where our sky has the constellation Camelopardalis. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 79569 10.2 light-years
- HIP 77149 13.0 light-years
- HIP 78479 16.2 light-years
- HIP 77675 17.5 light-years
- HIP 81037 19.3 light-years
- HIP 76843 19.6 light-years
- HIP 78393 19.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.