Star · B3V
20 Aql
20 Aql is a main-sequence star of spectral type B3V in the constellation Aquila, 942.0 light-years from the Sun.
| Other names | HIP 94385 |
|---|---|
| Constellation | Aquila |
| Distance | 942.0 light-years (288.8 pc) |
| Apparent magnitude | magnitude 5.35 |
| Absolute magnitude | magnitude −1.95 |
| Spectral type | B3V |
| Surface temperature | 9,090 K |
| Luminosity | 622 L☉ |
| Radius | 10.1 R☉ |
| Mass | 5.71 M☉ (estimated) |
| Right ascension (J2000) | 19h 12m 40.7s |
| Declination (J2000) | −7° 56′ 22″ |
| Space velocity (relative to the Sun) | 26.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.35). Visible from the whole Southern Hemisphere and north to latitude 82° N. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1084. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 17 million years.
The Sun seen from there
From a planet around 20 Aql, the Sun would look like a star of magnitude 12.13, in the direction where our sky has the constellation Canis Minor. 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.