Star · K4III
IC 4651 9122
IC 4651 9122 is a giant star of spectral type K4III in the constellation Ara, 3,008 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Ara |
|---|---|
| Distance | 3,008 light-years (922.3 pc) |
| Apparent magnitude | magnitude 11.01 |
| Absolute magnitude | magnitude 1.19 |
| Spectral type | K4III |
| Surface temperature | 4,740 K |
| Luminosity | 43.2 L☉ |
| Radius | 10.3 R☉ |
| Mass | 2.1 M☉ |
| Age | 1.1 billion years |
| Metallicity [Fe/H] | 0.12 |
| Right ascension (J2000) | 17h 24m 50.1s |
| Declination (J2000) | −49° 56′ 56″ |
| Space velocity (relative to the Sun) | 38.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.01. Visible from the whole Southern Hemisphere and north to latitude 40° N. South of latitude 40° S it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around 983 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 53 million years.
The Sun seen from there
From a planet around IC 4651 9122, the Sun would look like a star of magnitude 14.65, in the direction where our sky has the constellation Auriga. It would be invisible to the naked eye.
Planets
- IC 4651 9122 b 734-day orbit · 12.7 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.