Star · M4V
2MASS J19564700-7542270
2MASS J19564700-7542270 is a main-sequence star of spectral type M4V in the constellation Octans, 179.4 light-years from the Sun.
| Constellation | Octans |
|---|---|
| Distance | 179.4 light-years (55.0 pc) |
| Apparent magnitude | magnitude 21.65 |
| Absolute magnitude | magnitude 17.95 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.04 × 10⁻⁴ L☉ |
| Radius | 0.0384 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 19h 56m 47.0s |
| Declination (J2000) | −75° 42′ 27″ |
| Space velocity (relative to the Sun) | 21.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.65. Visible from the whole Southern Hemisphere and north to latitude 14° N. South of latitude 14° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1847. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.2 million years.
The Sun seen from there
From a planet around 2MASS J19564700-7542270, the Sun would look like a star of magnitude 8.53, in the direction where our sky has the constellation Camelopardalis. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 93432 17.7 light-years
- HIP 97507 18.5 light-years
- HIP 104856 19.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.