Star · A5IV
HIP 109404
HIP 109404 is a subgiant star of spectral type A5IV in the constellation Piscis Austrinus, 209.9 light-years from the Sun.
| Constellation | Piscis Austrinus |
|---|---|
| Distance | 209.9 light-years (64.4 pc) |
| Apparent magnitude | magnitude 5.37 |
| Absolute magnitude | magnitude 1.33 |
| Spectral type | A5IV |
| Surface temperature | 7,860 K |
| Luminosity | 26.3 L☉ |
| Radius | 2.76 R☉ |
| Mass | 2.31 M☉ (estimated) |
| Right ascension (J2000) | 22h 09m 55.7s |
| Declination (J2000) | −34° 00′ 54″ |
| Space velocity (relative to the Sun) | 9.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.37). Visible from the whole Southern Hemisphere and north to latitude 56° N. South of latitude 56° S it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1816. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.7 million years.
The Sun seen from there
From a planet around HIP 109404, the Sun would look like a star of magnitude 8.87, in the direction where our sky has the constellation Leo Minor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 110262 11.4 light-years
- HIP 109007 11.6 light-years
- HIP 109462 14.9 light-years
- HIP 109470 16.1 light-years
- HIP 109207 16.1 light-years
- HIP 110028 16.4 light-years
- HIP 109149 18.9 light-years
- ι PsA 19.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.