Star · M4V
2MASS J15515237+0941148
2MASS J15515237+0941148 is a main-sequence star of spectral type M4V in the constellation Serpens, 146.8 light-years from the Sun.
| Constellation | Serpens |
|---|---|
| Distance | 146.8 light-years (45.0 pc) |
| Apparent magnitude | magnitude 21.82 |
| Absolute magnitude | magnitude 18.55 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 5.95 × 10⁻⁵ L☉ |
| Radius | 0.029 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 15h 51m 52.4s |
| Declination (J2000) | +9° 41′ 15″ |
| Space velocity (relative to the Sun) | 23.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.82. Visible from the whole Northern Hemisphere and south to latitude 80° S. 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 1879. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.6 million years.
The Sun seen from there
From a planet around 2MASS J15515237+0941148, the Sun would look like a star of magnitude 8.10, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 77098 10.3 light-years
- HIP 76912 10.5 light-years
- HIP 76543 11.8 light-years
- HIP 77210 13.9 light-years
- HIP 77810 14.6 light-years
- 2MASS J15565004+1449081 14.7 light-years
- HIP 77292 15.3 light-years
- β Ser 15.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.