Star · M4V
SDSS J084751.48+013811.0
SDSS J084751.48+013811.0 is a main-sequence star of spectral type M4V in the constellation Hydra, 120.0 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 120.0 light-years (36.8 pc) |
| Apparent magnitude | magnitude 21.73 |
| Absolute magnitude | magnitude 18.90 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 4.32 × 10⁻⁵ L☉ |
| Radius | 0.0247 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 8h 47m 51.5s |
| Declination (J2000) | +1° 38′ 11″ |
| Space velocity (relative to the Sun) | 9.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.73. Visible from the whole Northern Hemisphere and south to latitude 88° S. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1906. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.1 million years.
The Sun seen from there
From a planet around SDSS J084751.48+013811.0, the Sun would look like a star of magnitude 7.66, 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):
- HIP 42488 10.5 light-years
- HIP 42491 10.6 light-years
- SDSSp J083717.22-000018.3 11.1 light-years
- 2MASS J08355829+0548308 13.1 light-years
- HIP 44953 13.2 light-years
- Ashlesha 13.9 light-years
- θ Hya 14.0 light-years
- ULAS J082707.67-020408.2 14.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.