Star · F4V
30 Ari
30 Ari is a main-sequence star of spectral type F4V in the constellation Aries, 144.9 light-years from the Sun.
| Other names | HIP 12184 |
|---|---|
| Constellation | Aries |
| Distance | 144.9 light-years (44.4 pc) |
| Apparent magnitude | magnitude 7.10 |
| Absolute magnitude | magnitude 3.86 |
| Spectral type | F4V |
| Surface temperature | 6,830 K |
| Luminosity | 2.42 L☉ |
| Radius | 1.11 R☉ |
| Mass | 1.25 M☉ (estimated) |
| Right ascension (J2000) | 2h 36m 57.7s |
| Declination (J2000) | +24° 38′ 53″ |
| Space velocity (relative to the Sun) | 32.2 km/s |
In the sky
Too faint for the naked eye (magnitude 7.10); binoculars will find it. 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 1881. 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 8.07, 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 7.61 light-years
- HIP 11728 7.87 light-years
- 20 Ari 16.2 light-years
- HD 17674 16.3 light-years
- HIP 13806 19.4 light-years
- Gl 113.1 19.5 light-years
- HIP 11437 19.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.