Star · M4V
SIMP J10135847-1946546
SIMP J10135847-1946546 is a main-sequence star of spectral type M4V in the constellation Hydra, 313.1 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 313.1 light-years (96.0 pc) |
| Apparent magnitude | magnitude 21.88 |
| Absolute magnitude | magnitude 16.97 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.56 × 10⁻⁴ L☉ |
| Radius | 0.0603 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 10h 13m 58.4s |
| Declination (J2000) | −19° 46′ 55″ |
| Space velocity (relative to the Sun) | 98.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.88. Visible from the whole Southern Hemisphere and north to latitude 70° N. South of latitude 70° S it never sets. 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 1713. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.6 million years.
The Sun seen from there
From a planet around SIMP J10135847-1946546, the Sun would look like a star of magnitude 9.74, in the direction where our sky has the constellation Pegasus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 50320 6.75 light-years
- HIP 50340 9.50 light-years
- HIP 49998 19.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.