Star · F6III
30 Ari
30 Ari is a giant star of spectral type F6III in the constellation Aries, 146.5 light-years from the Sun.
| Other names | HIP 12189 |
|---|---|
| Constellation | Aries |
| Distance | 146.5 light-years (44.9 pc) |
| Apparent magnitude | magnitude 6.48 |
| Absolute magnitude | magnitude 3.22 |
| Spectral type | F6III |
| Surface temperature | 6,340 K |
| Luminosity | 4.46 L☉ |
| Radius | 1.75 R☉ |
| Mass | 1.45 M☉ (estimated) |
| Right ascension (J2000) | 2h 37m 00.5s |
| Declination (J2000) | +24° 38′ 50″ |
| Space velocity (relative to the Sun) | 38.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.48). Visible from the whole Northern Hemisphere and south to latitude 65° S. North of latitude 65° 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 1879. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.6 million years.
The Sun seen from there
From a planet around 30 Ari, the Sun would look like a star of magnitude 8.09, 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):
- 30 Ari 1.63 light-years
- 2MASS J02301551+2704061 8.36 light-years
- HIP 11728 8.71 light-years
- HD 17674 16.5 light-years
- 20 Ari 17.4 light-years
- HIP 14211 19.1 light-years
- 12 Tri 19.6 light-years
- 2MASSW J0208236+273740 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.