Star · M2V
2MASSI J0117474-340325
2MASSI J0117474-340325 is a main-sequence star of spectral type M2V in the constellation Sculptor, 128.7 light-years from the Sun.
| Constellation | Sculptor |
|---|---|
| Distance | 128.7 light-years (39.5 pc) |
| Apparent magnitude | magnitude 22.38 |
| Absolute magnitude | magnitude 19.40 |
| Spectral type | M2V |
| Surface temperature | 3,280 K |
| Luminosity | 1.30 × 10⁻⁵ L☉ |
| Radius | 0.0111 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 1h 17m 47.6s |
| Declination (J2000) | −34° 03′ 27″ |
| Space velocity (relative to the Sun) | 23.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.38. Visible from the whole Southern Hemisphere and north to latitude 56° N. South of latitude 56° S it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1897. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.3 million years.
The Sun seen from there
From a planet around 2MASSI J0117474-340325, the Sun would look like a star of magnitude 7.81, in the direction where our sky has the constellation Canes Venatici. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASSI J0125369-343505 5.35 light-years
- HIP 6206 11.9 light-years
- HIP 7018 12.9 light-years
- HIP 7822 13.9 light-years
- HIP 6744 14.8 light-years
- GJ 3088 14.9 light-years
- VIKING J012834.94-280302.6 14.9 light-years
- HIP 6607 15.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.