Star · G0
HD 13931
HD 13931 is a main-sequence star of spectral type G0 in the constellation Andromeda, 153.9 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 10626 |
|---|---|
| Constellation | Andromeda |
| Distance | 153.9 light-years (47.2 pc) |
| Apparent magnitude | magnitude 7.61 |
| Absolute magnitude | magnitude 4.24 |
| Spectral type | G0 |
| Surface temperature | 5,870 K |
| Luminosity | 1.57 L☉ |
| Radius | 1.25 R☉ |
| Mass | 1.3 M☉ |
| Age | 8.4 billion years |
| Metallicity [Fe/H] | 0.05 |
| Right ascension (J2000) | 2h 16m 47.4s |
| Declination (J2000) | +43° 46′ 23″ |
| Space velocity (relative to the Sun) | 55.8 km/s |
In the sky
Too faint for the naked eye (magnitude 7.61); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 46° S. North of latitude 46° N it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1872. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.7 million years.
The Sun seen from there
From a planet around HD 13931, the Sun would look like a star of magnitude 8.20, in the direction where our sky has the constellation Centaurus. It would be invisible to the naked eye.
Planets
- HD 13931 b 4,220-day orbit · 13.2 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 92.2 1.83 light-years
- HIP 11090 8.04 light-years
- HIP 9059 13.6 light-years
- HIP 9151 13.9 light-years
- HIP 9583 15.8 light-years
- 2MASS J01472702+4731142 18.1 light-years
- HIP 12509 18.6 light-years
- HIP 7924 19.8 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.