Star · A0V
HIP 28855
HIP 28855 is a main-sequence star of spectral type A0V in the constellation Columba, 279.0 light-years from the Sun.
| Constellation | Columba |
|---|---|
| Distance | 279.0 light-years (85.6 pc) |
| Apparent magnitude | magnitude 5.80 |
| Absolute magnitude | magnitude 1.14 |
| Spectral type | A0V |
| Surface temperature | 9,800 K |
| Luminosity | 40 L☉ |
| Radius | 2.19 R☉ |
| Mass | 2.61 M☉ (estimated) |
| Right ascension (J2000) | 6h 05m 27.2s |
| Declination (J2000) | −35° 30′ 49″ |
| Space velocity (relative to the Sun) | 25.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.80). Visible from the whole Southern Hemisphere and north to latitude 54° N. South of latitude 54° S it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1747. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.0 million years.
The Sun seen from there
From a planet around HIP 28855, the Sun would look like a star of magnitude 9.49, in the direction where our sky has the constellation Hercules. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 28230 13.0 light-years
- HIP 29626 13.0 light-years
- HIP 28654 14.8 light-years
- HIP 29842 16.6 light-years
- HIP 28450 20.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.