Star · G8/K0 III
HD 64121
HD 64121 is a giant star of spectral type G8/K0 III in the constellation Carina, 422.0 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 38181 |
|---|---|
| Constellation | Carina |
| Distance | 422.0 light-years (129.4 pc) |
| Apparent magnitude | magnitude 7.43 |
| Absolute magnitude | magnitude 1.87 |
| Spectral type | G8/K0 III |
| Surface temperature | 5,080 K |
| Luminosity | 17.7 L☉ |
| Radius | 5.44 R☉ |
| Mass | 1.64 M☉ |
| Metallicity [Fe/H] | -0.21 |
| Right ascension (J2000) | 7h 49m 27.6s |
| Declination (J2000) | −54° 48′ 44″ |
| Space velocity (relative to the Sun) | 46.3 km/s |
In the sky
Too faint for the naked eye (magnitude 7.43); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 35° N. South of latitude 35° 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 1604. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.5 million years.
The Sun seen from there
From a planet around HD 64121, the Sun would look like a star of magnitude 10.39, in the direction where our sky has the constellation Cygnus. It would be invisible to the naked eye.
Planets
- HD 64121 b 623-day orbit · 13.2 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.