Star · M6III
ρ² Ari
ρ² Ari is a giant star of spectral type M6III in the constellation Aries, 351.5 light-years from the Sun.
| Other names | HIP 13654 |
|---|---|
| Constellation | Aries |
| Distance | 351.5 light-years (107.8 pc) |
| Apparent magnitude | magnitude 5.76 |
| Absolute magnitude | magnitude 0.60 |
| Spectral type | M6III |
| Surface temperature | 3,870 K |
| Luminosity | 165 L☉ |
| Radius | 28.6 R☉ |
| Mass | 3.91 M☉ (estimated) |
| Right ascension (J2000) | 2h 55m 48.5s |
| Declination (J2000) | +18° 19′ 54″ |
| Space velocity (relative to the Sun) | 48.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.76). Visible from the whole Northern Hemisphere and south to latitude 72° S. North of latitude 72° 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 1675. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.2 million years.
The Sun seen from there
From a planet around ρ² Ari, the Sun would look like a star of magnitude 9.99, in the direction where our sky has the constellation Libra. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.