Star · A1
HIP 15204
HIP 15204 is a main-sequence star of spectral type A1 in the constellation Perseus, 204.5 light-years from the Sun.
| Constellation | Perseus |
|---|---|
| Distance | 204.5 light-years (62.7 pc) |
| Apparent magnitude | magnitude 6.25 |
| Absolute magnitude | magnitude 2.26 |
| Spectral type | A1 |
| Surface temperature | 7,530 K |
| Luminosity | 10.8 L☉ |
| Radius | 1.93 R☉ |
| Mass | 1.81 M☉ (estimated) |
| Right ascension (J2000) | 3h 16m 01.9s |
| Declination (J2000) | +34° 41′ 18″ |
| Space velocity (relative to the Sun) | 18.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.25). Visible from the whole Northern Hemisphere and south to latitude 55° S. North of latitude 55° N it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1822. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.6 million years.
The Sun seen from there
From a planet around HIP 15204, the Sun would look like a star of magnitude 8.82, in the direction where our sky has the constellation Lupus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 16025 9.49 light-years
- HIP 15329 16.2 light-years
- HIP 16107 17.5 light-years
- HIP 15146 19.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.