Star · A3V
HIP 42579
HIP 42579 is a main-sequence star of spectral type A3V in the constellation Carina, 235.1 light-years from the Sun.
| Constellation | Carina |
|---|---|
| Distance | 235.1 light-years (72.1 pc) |
| Apparent magnitude | magnitude 6.34 |
| Absolute magnitude | magnitude 2.05 |
| Spectral type | A3V |
| Surface temperature | 8,100 K |
| Luminosity | 13.8 L☉ |
| Radius | 1.88 R☉ |
| Mass | 1.93 M☉ (estimated) |
| Right ascension (J2000) | 8h 40m 43.6s |
| Declination (J2000) | −57° 32′ 44″ |
| Space velocity (relative to the Sun) | 18.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.34). Visible from the whole Southern Hemisphere and north to latitude 32° N. South of latitude 32° S it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1791. 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 42579, the Sun would look like a star of magnitude 9.12, in the direction where our sky has the constellation Cepheus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 41353 8.65 light-years
- HIP 44195 12.1 light-years
- HIP 41579 13.4 light-years
- HIP 42134 16.6 light-years
- HIP 41147 18.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.