Star · K2III
HIP 11603
HIP 11603 is a giant star of spectral type K2III in the constellation Cetus, 305.1 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 305.1 light-years (93.5 pc) |
| Apparent magnitude | magnitude 6.09 |
| Absolute magnitude | magnitude 1.24 |
| Spectral type | K2III |
| Surface temperature | 4,690 K |
| Luminosity | 44.3 L☉ |
| Radius | 10.1 R☉ |
| Mass | 2.68 M☉ (estimated) |
| Right ascension (J2000) | 2h 29m 35.4s |
| Declination (J2000) | +9° 33′ 56″ |
| Space velocity (relative to the Sun) | 10.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.09). Visible from the whole Northern Hemisphere and south to latitude 80° S. 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 1721. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.4 million years.
The Sun seen from there
From a planet around HIP 11603, the Sun would look like a star of magnitude 9.68, 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):
- HIP 10825 18.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.