Star · K9V
SDSS J122855.38+005044.1
SDSS J122855.38+005044.1 is a main-sequence star of spectral type K9V in the constellation Virgo, 305.9 light-years from the Sun.
| Constellation | Virgo |
|---|---|
| Distance | 305.9 light-years (93.8 pc) |
| Apparent magnitude | magnitude 21.71 |
| Absolute magnitude | magnitude 16.85 |
| Spectral type | K9V |
| Surface temperature | 3,720 K |
| Luminosity | 6.30 × 10⁻⁵ L☉ |
| Radius | 0.0191 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 28m 55.3s |
| Declination (J2000) | +0° 50′ 44″ |
| Space velocity (relative to the Sun) | 21.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.71. Visible from the whole Northern Hemisphere and south to latitude 89° S. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1720. 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 SDSS J122855.38+005044.1, the Sun would look like a star of magnitude 9.69, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 60726 9.24 light-years
- HIP 61303 12.7 light-years
- HIP 61428 15.7 light-years
- HIP 60264 17.5 light-years
- HIP 61714 17.7 light-years
- HIP 61672 19.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.