Star · K7V
SDSS J092142.52+084202.7
SDSS J092142.52+084202.7 is a main-sequence star of spectral type K7V in the constellation Leo, 163.8 light-years from the Sun.
| Constellation | Leo |
|---|---|
| Distance | 163.8 light-years (50.2 pc) |
| Apparent magnitude | magnitude 21.12 |
| Absolute magnitude | magnitude 17.62 |
| Spectral type | K7V |
| Surface temperature | 4,030 K |
| Luminosity | 2.13 × 10⁻⁵ L☉ |
| Radius | 0.00946 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 9h 21m 42.4s |
| Declination (J2000) | +8° 42′ 02″ |
| Space velocity (relative to the Sun) | 39.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.12. Visible from the whole Northern Hemisphere and south to latitude 81° S. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1862. 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 SDSS J092142.52+084202.7, the Sun would look like a star of magnitude 8.33, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SIMP J09155650+0514212 11.3 light-years
- HIP 45150 11.8 light-years
- HIP 46367 13.0 light-years
- ULAS J093930.74+065309.8 14.0 light-years
- SDSS J094134.92+100942.0 15.6 light-years
- ULAS J085715.96+091325.3 17.6 light-years
- HIP 44137 17.8 light-years
- HIP 45488 17.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.