Star · K9V
SDSSp J005406.55-003101.8
SDSSp J005406.55-003101.8 is a main-sequence star of spectral type K9V in the constellation Cetus, 164.5 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 164.5 light-years (50.4 pc) |
| Apparent magnitude | magnitude 21.65 |
| Absolute magnitude | magnitude 18.14 |
| Spectral type | K9V |
| Surface temperature | 3,770 K |
| Luminosity | 1.81 × 10⁻⁵ L☉ |
| Radius | 0.00999 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 0h 54m 06.8s |
| Declination (J2000) | −0° 31′ 05″ |
| Space velocity (relative to the Sun) | 78.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.65. Visible from the whole Southern Hemisphere and north to latitude 89° N. 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 1861. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.9 million years.
The Sun seen from there
From a planet around SDSSp J005406.55-003101.8, the Sun would look like a star of magnitude 8.34, in the direction where our sky has the constellation Virgo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J00521232+0012172 2.86 light-years
- 2MASSI J0104075-005328 10.7 light-years
- WISEA J004403.39+022810.6 11.4 light-years
- HIP 5253 11.5 light-years
- HIP 3311 12.5 light-years
- HIP 2786 14.1 light-years
- HIP 5245 15.4 light-years
- HIP 5646 15.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.