Star · B3III
δ² Tel
δ² Tel is a giant star of spectral type B3III in the constellation Telescopium, 1,130 light-years from the Sun.
| Other names | HIP 90853 |
|---|---|
| Constellation | Telescopium |
| Distance | 1,130 light-years (346.5 pc) |
| Apparent magnitude | magnitude 5.07 |
| Absolute magnitude | magnitude −2.63 |
| Spectral type | B3III |
| Surface temperature | 12,050 K |
| Luminosity | 1,850 L☉ |
| Radius | 9.88 R☉ |
| Mass | 7.79 M☉ (estimated) |
| Right ascension (J2000) | 18h 32m 01.9s |
| Declination (J2000) | −45° 45′ 27″ |
| Space velocity (relative to the Sun) | 19.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.07). Visible from the whole Southern Hemisphere and north to latitude 44° N. South of latitude 44° S it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 896. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 20 million years.
The Sun seen from there
From a planet around δ² Tel, the Sun would look like a star of magnitude 12.53, in the direction where our sky has the constellation Auriga. 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.