Star · M4V
SIMP J15102256-1147125
SIMP J15102256-1147125 is a main-sequence star of spectral type M4V in the constellation Libra, 116.4 light-years from the Sun.
| Constellation | Libra |
|---|---|
| Distance | 116.4 light-years (35.7 pc) |
| Apparent magnitude | magnitude 21.16 |
| Absolute magnitude | magnitude 18.40 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 6.88 × 10⁻⁵ L☉ |
| Radius | 0.0312 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 15h 10m 22.6s |
| Declination (J2000) | −11° 47′ 12″ |
| Space velocity (relative to the Sun) | 36.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.16. Visible from the whole Southern Hemisphere and north to latitude 78° N. South of latitude 78° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1910. 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 SIMP J15102256-1147125, the Sun would look like a star of magnitude 7.59, in the direction where our sky has the constellation Aries. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 73717 11.2 light-years
- HIP 74771 13.1 light-years
- HIP 74067 14.4 light-years
- HIP 73194 14.6 light-years
- WISEAR J154025.77-113940.8 15.0 light-years
- HIP 76603 15.4 light-years
- HIP 73309 15.4 light-years
- GJ 3887 16.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.