Star · A7V
HIP 55485
HIP 55485 is a main-sequence star of spectral type A7V in the constellation Ursa Major, 277.8 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 277.8 light-years (85.2 pc) |
| Apparent magnitude | magnitude 6.43 |
| Absolute magnitude | magnitude 1.78 |
| Spectral type | A7V |
| Surface temperature | 8,480 K |
| Luminosity | 18.5 L☉ |
| Radius | 1.99 R☉ |
| Mass | 2.09 M☉ (estimated) |
| Right ascension (J2000) | 11h 21m 49.3s |
| Declination (J2000) | +57° 04′ 29″ |
| Space velocity (relative to the Sun) | 23.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.43). Visible from the whole Northern Hemisphere and south to latitude 33° S. North of latitude 33° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1748. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.9 million years.
The Sun seen from there
From a planet around HIP 55485, the Sun would look like a star of magnitude 9.48, in the direction where our sky has the constellation Tucana. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 56815 15.1 light-years
- HIP 56935 17.6 light-years
- HIP 57135 17.7 light-years
- SDSS J110148.04+544009.2 18.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.