Star · A7III
25 CVn
25 CVn is a giant star of spectral type A7III in the constellation Canes Venatici, 184.0 light-years from the Sun.
| Other names | HIP 66458 |
|---|---|
| Constellation | Canes Venatici |
| Distance | 184.0 light-years (56.4 pc) |
| Apparent magnitude | magnitude 4.82 |
| Absolute magnitude | magnitude 1.06 |
| Spectral type | A7III |
| Surface temperature | 7,870 K |
| Luminosity | 33.5 L☉ |
| Radius | 3.11 R☉ |
| Mass | 2.48 M☉ (estimated) |
| Right ascension (J2000) | 13h 37m 27.7s |
| Declination (J2000) | +36° 17′ 42″ |
| Space velocity (relative to the Sun) | 26.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.82). Visible from the whole Northern Hemisphere and south to latitude 54° S. North of latitude 54° 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 1842. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.3 million years.
The Sun seen from there
From a planet around 25 CVn, the Sun would look like a star of magnitude 8.59, in the direction where our sky has the constellation Sculptor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 67177 7.57 light-years
- HIP 67921 13.2 light-years
- HIP 66051 14.9 light-years
- HIP 65114 16.5 light-years
- HIP 68522 16.9 light-years
- HIP 64461 17.3 light-years
- HIP 64028 19.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.