Star · A1V
HIP 65728
HIP 65728 is a main-sequence star of spectral type A1V in the constellation Ursa Major, 235.9 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 235.9 light-years (72.3 pc) |
| Apparent magnitude | magnitude 5.40 |
| Absolute magnitude | magnitude 1.10 |
| Spectral type | A1V |
| Surface temperature | 10,250 K |
| Luminosity | 44.4 L☉ |
| Radius | 2.11 R☉ |
| Mass | 2.68 M☉ (estimated) |
| Right ascension (J2000) | 13h 28m 27.1s |
| Declination (J2000) | +59° 56′ 45″ |
| Space velocity (relative to the Sun) | 30.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.40). Visible from the whole Northern Hemisphere and south to latitude 30° S. North of latitude 30° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1790. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.2 million years.
The Sun seen from there
From a planet around HIP 65728, the Sun would look like a star of magnitude 9.13, in the direction where our sky has the constellation Hydrus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 65756 2.46 light-years
- 2MASS J13081228+6103486 14.4 light-years
- HIP 63625 15.4 light-years
- SDSS J130148.19+584104.1 18.2 light-years
- HIP 66807 18.3 light-years
- HIP 65336 19.4 light-years
- TOI-1823 19.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.