Star · M4V
2MASSI J1047538+212423
2MASSI J1047538+212423 is a main-sequence star of spectral type M4V in the constellation Leo, 34.2 light-years from the Sun.
| Constellation | Leo |
|---|---|
| Distance | 34.2 light-years (10.5 pc) |
| Apparent magnitude | magnitude 23.32 |
| Absolute magnitude | magnitude 23.21 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 8.14 × 10⁻⁷ L☉ |
| Radius | 0.0034 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 10h 47m 53.6s |
| Declination (J2000) | +21° 24′ 23″ |
| Space velocity (relative to the Sun) | 86.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 23.32. Visible from the whole Northern Hemisphere and south to latitude 69° S. North of latitude 69° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1992. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 608 thousand years.
The Sun seen from there
From a planet around 2MASSI J1047538+212423, the Sun would look like a star of magnitude 4.94, in the direction where our sky has the constellation Aquarius. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 410 5.19 light-years
- Alula Australis 7.24 light-years
- GJ 3571 7.81 light-years
- GJ 414 A 8.01 light-years
- Gl 414B 8.01 light-years
- Noquisi 8.10 light-years
- GJ 1138 8.50 light-years
- Alula Australis B 8.78 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.