Star · M2V
2MASS J22551861-5713056
2MASS J22551861-5713056 is a main-sequence star of spectral type M2V in the constellation Tucana, 55.7 light-years from the Sun.
| Constellation | Tucana |
|---|---|
| Distance | 55.7 light-years (17.1 pc) |
| Apparent magnitude | magnitude 21.42 |
| Absolute magnitude | magnitude 20.26 |
| Spectral type | M2V |
| Surface temperature | 3,250 K |
| Luminosity | 6.31 × 10⁻⁶ L☉ |
| Radius | 0.00794 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 22h 55m 18.2s |
| Declination (J2000) | −57° 13′ 10″ |
| Space velocity (relative to the Sun) | 26.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.42. Visible from the whole Southern Hemisphere and north to latitude 33° N. South of latitude 33° S it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1970. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 988 thousand years.
The Sun seen from there
From a planet around 2MASS J22551861-5713056, the Sun would look like a star of magnitude 5.99, in the direction where our sky has the constellation Ursa Major. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 855 7.61 light-years
- WISE J223204.50-573010.5 7.65 light-years
- GJ 4222 9.71 light-years
- GJ 1283 9.93 light-years
- Gl 836.9A 10.6 light-years
- 2MASS J23312378-4718274 11.2 light-years
- GJ 4310 11.3 light-years
- Gl 853A 11.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.