Star · M2III
η² Dor
η² Dor is a giant star of spectral type M2III in the constellation Dorado, 719.8 light-years from the Sun.
| Other names | HIP 29353 |
|---|---|
| Constellation | Dorado |
| Distance | 719.8 light-years (220.7 pc) |
| Apparent magnitude | magnitude 5.01 |
| Absolute magnitude | magnitude −1.71 |
| Spectral type | M2III |
| Surface temperature | 3,650 K |
| Luminosity | 1,860 L☉ |
| Radius | 108 R☉ |
| Mass | 7.81 M☉ (estimated) |
| Right ascension (J2000) | 6h 11m 15.0s |
| Declination (J2000) | −65° 35′ 22″ |
| Space velocity (relative to the Sun) | 131.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.01). Visible from the whole Southern Hemisphere and north to latitude 24° N. South of latitude 24° S it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1306. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 13 million years.
The Sun seen from there
From a planet around η² Dor, the Sun would look like a star of magnitude 11.55, in the direction where our sky has the constellation Draco. 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.