Star · A2V
θ And
θ And is a main-sequence star of spectral type A2V in the constellation Andromeda, 172.8 light-years from the Sun.
| Other names | HIP 1366 |
|---|---|
| Constellation | Andromeda |
| Distance | 172.8 light-years (53.0 pc) |
| Apparent magnitude | magnitude 4.61 |
| Absolute magnitude | magnitude 0.99 |
| Spectral type | A2V |
| Surface temperature | 9,440 K |
| Luminosity | 43.5 L☉ |
| Radius | 2.46 R☉ |
| Mass | 2.67 M☉ (estimated) |
| Right ascension (J2000) | 0h 17m 05.5s |
| Declination (J2000) | +38° 40′ 54″ |
| Space velocity (relative to the Sun) | 14.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.61). Visible from the whole Northern Hemisphere and south to latitude 51° S. North of latitude 51° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1853. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.1 million years.
The Sun seen from there
From a planet around θ And, the Sun would look like a star of magnitude 8.45, in the direction where our sky has the constellation Centaurus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- ρ And 9.83 light-years
- HIP 1442 9.88 light-years
- HIP 110 10.3 light-years
- HIP 117762 16.8 light-years
- PSO J004.7818+41.0231 16.9 light-years
- HIP 3022 17.9 light-years
- HIP 2128 18.7 light-years
- HIP 3293 18.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.