Star · K1 III
HD 69123
HD 69123 is a giant star of spectral type K1 III in the constellation Puppis, 245.3 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 40344 |
|---|---|
| Constellation | Puppis |
| Distance | 245.3 light-years (75.2 pc) |
| Apparent magnitude | magnitude 5.77 |
| Absolute magnitude | magnitude 1.39 |
| Spectral type | K1 III |
| Surface temperature | 4,840 K |
| Luminosity | 29.5 L☉ |
| Radius | 7.72 R☉ |
| Mass | 1.68 M☉ |
| Metallicity [Fe/H] | 0.05 |
| Right ascension (J2000) | 8h 14m 13.3s |
| Declination (J2000) | −35° 29′ 24″ |
| Space velocity (relative to the Sun) | 32.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.77). Visible from the whole Southern Hemisphere and north to latitude 55° N. South of latitude 55° 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 1781. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.4 million years.
The Sun seen from there
From a planet around HD 69123, the Sun would look like a star of magnitude 9.21, in the direction where our sky has the constellation Cygnus. It would be invisible to the naked eye.
Planets
- HD 69123 b 1,190-day orbit · 13.1 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3489A 9.22 light-years
- HIP 40279 14.1 light-years
- HIP 41754 19.2 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.