Star · G8IV
Alshain
Alshain is a subgiant star of spectral type G8IV in the constellation Aquila, 44.4 light-years from the Sun.
| Other names | β Aql · Gl 771A · HIP 98036 |
|---|---|
| Constellation | Aquila |
| Distance | 44.4 light-years (13.6 pc) |
| Apparent magnitude | magnitude 3.71 |
| Absolute magnitude | magnitude 3.04 |
| Spectral type | G8IV |
| Surface temperature | 5,120 K |
| Luminosity | 6.79 L☉ |
| Radius | 3.31 R☉ |
| Mass | 1.61 M☉ (estimated) |
| Right ascension (J2000) | 19h 55m 18.8s |
| Declination (J2000) | +6° 24′ 25″ |
| Space velocity (relative to the Sun) | 50.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 3.71). Visible from the whole Northern Hemisphere and south to latitude 84° S. 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 1982. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 787 thousand years.
The Sun seen from there
From a planet around Alshain, the Sun would look like a star of magnitude 5.50, in the direction where our sky has the constellation Monoceros. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.