Star · F5IV
47 Ari
47 Ari is a subgiant star of spectral type F5IV in the constellation Aries, 106.5 light-years from the Sun.
| Other names | HIP 13834 |
|---|---|
| Constellation | Aries |
| Distance | 106.5 light-years (32.7 pc) |
| Apparent magnitude | magnitude 5.80 |
| Absolute magnitude | magnitude 3.23 |
| Spectral type | F5IV |
| Surface temperature | 6,800 K |
| Luminosity | 4.34 L☉ |
| Radius | 1.5 R☉ |
| Mass | 1.44 M☉ (estimated) |
| Right ascension (J2000) | 2h 58m 05.2s |
| Declination (J2000) | +20° 40′ 07″ |
| Space velocity (relative to the Sun) | 46.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.80). Visible from the whole Northern Hemisphere and south to latitude 69° S. North of latitude 69° N it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1919. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.9 million years.
The Sun seen from there
From a planet around 47 Ari, the Sun would look like a star of magnitude 7.40, in the direction where our sky has the constellation Libra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J03001631+2130205 2.14 light-years
- HIP 13027 5.48 light-years
- CWISE J031042.59+204629.3 7.62 light-years
- 2MASSW J0306268+154514 9.99 light-years
- 2MASS J03250136+2253039 12.6 light-years
- GJ 3166 13.0 light-years
- HIP 13644 14.1 light-years
- ρ³ Ari 14.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.