Star · F6V
HIP 5021
HIP 5021 is a main-sequence star of spectral type F6V in the constellation Cassiopeia, 256.4 light-years from the Sun.
| Constellation | Cassiopeia |
|---|---|
| Distance | 256.4 light-years (78.6 pc) |
| Apparent magnitude | magnitude 5.83 |
| Absolute magnitude | magnitude 1.35 |
| Spectral type | F6V |
| Surface temperature | 6,090 K |
| Luminosity | 25.5 L☉ |
| Radius | 4.53 R☉ |
| Mass | 2.29 M☉ (estimated) |
| Right ascension (J2000) | 1h 04m 19.5s |
| Declination (J2000) | +61° 34′ 49″ |
| Space velocity (relative to the Sun) | 36.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.83). Visible from the whole Northern Hemisphere and south to latitude 28° S. North of latitude 28° N it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1770. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.5 million years.
The Sun seen from there
From a planet around HIP 5021, the Sun would look like a star of magnitude 9.31, in the direction where our sky has the constellation Centaurus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 4740 12.0 light-years
- HIP 5353 13.8 light-years
- 35 Cas 16.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.