Star · M4V
SIMP J09463358+1808211
SIMP J09463358+1808211 is a main-sequence star of spectral type M4V in the constellation Leo, 215.3 light-years from the Sun.
| Constellation | Leo |
|---|---|
| Distance | 215.3 light-years (66.0 pc) |
| Apparent magnitude | magnitude 21.84 |
| Absolute magnitude | magnitude 17.74 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.26 × 10⁻⁴ L☉ |
| Radius | 0.0422 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 9h 46m 33.6s |
| Declination (J2000) | +18° 08′ 20″ |
| Space velocity (relative to the Sun) | 52.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.84. Visible from the whole Northern Hemisphere and south to latitude 72° S. North of latitude 72° N 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 1811. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.8 million years.
The Sun seen from there
From a planet around SIMP J09463358+1808211, the Sun would look like a star of magnitude 8.93, in the direction where our sky has the constellation Capricornus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 48372 5.78 light-years
- HIP 47972 9.88 light-years
- HIP 48744 10.1 light-years
- HIP 48205 10.1 light-years
- HIP 48151 13.6 light-years
- HIP 49136 14.1 light-years
- SDSS J094818.61+132320.0 18.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.