Star · G5V
κ¹ Cet
κ¹ Cet is a main-sequence star of spectral type G5V in the constellation Cetus, 30.3 light-years from the Sun.
| Other names | Gl 137 · HIP 15457 |
|---|---|
| Constellation | Cetus |
| Distance | 30.3 light-years (9.28 pc) |
| Apparent magnitude | magnitude 4.84 |
| Absolute magnitude | magnitude 5.00 |
| Spectral type | G5V |
| Surface temperature | 5,670 K |
| Luminosity | 0.946 L☉ |
| Radius | 1.01 R☉ |
| Mass | 0.986 M☉ (estimated) |
| Right ascension (J2000) | 3h 19m 21.7s |
| Declination (J2000) | +3° 22′ 12″ |
| Space velocity (relative to the Sun) | 22.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.84). Visible from the whole Northern Hemisphere and south to latitude 87° S. 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 1996. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 537 thousand years.
The Sun seen from there
From a planet around κ¹ Cet, the Sun would look like a star of magnitude 4.67, in the direction where our sky has the constellation Serpens. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- CD Cet 2.44 light-years
- WISE J033605.05-014350.4 4.35 light-years
- 2MASS J03552337+1133437 6.36 light-years
- GJ 1065 7.03 light-years
- Rana 7.54 light-years
- PSO J043.5395+02.3995 8.45 light-years
- Gl 105B 8.51 light-years
- 268 G. Cet 8.51 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.