Star · B2IV
Markeb
Markeb is a subgiant star of spectral type B2IV in the constellation Vela, 572.2 light-years from the Sun.
| Other names | κ Vel · HIP 45941 |
|---|---|
| Constellation | Vela |
| Distance | 572.2 light-years (175.4 pc) |
| Apparent magnitude | magnitude 2.47 |
| Absolute magnitude | magnitude −3.75 |
| Spectral type | B2IV |
| Surface temperature | 12,310 K |
| Luminosity | 5,430 L☉ |
| Radius | 16.2 R☉ |
| Mass | 10.6 M☉ (estimated) |
| Right ascension (J2000) | 9h 22m 06.8s |
| Declination (J2000) | −55° 00′ 38″ |
| Space velocity (relative to the Sun) | 25.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 2.47). 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 February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1454. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 10 million years.
The Sun seen from there
From a planet around Markeb, the Sun would look like a star of magnitude 11.05, in the direction where our sky has the constellation Cygnus. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.