Star · M2V
2MASSW J2130446-084520
2MASSW J2130446-084520 is a main-sequence star of spectral type M2V in the constellation Capricornus, 87.1 light-years from the Sun.
| Constellation | Capricornus |
|---|---|
| Distance | 87.1 light-years (26.7 pc) |
| Apparent magnitude | magnitude 21.23 |
| Absolute magnitude | magnitude 19.10 |
| Spectral type | M2V |
| Surface temperature | 3,190 K |
| Luminosity | 2.08 × 10⁻⁵ L☉ |
| Radius | 0.0149 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 21h 30m 45.0s |
| Declination (J2000) | −8° 45′ 21″ |
| Space velocity (relative to the Sun) | 44.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.23. Visible from the whole Southern Hemisphere and north to latitude 81° N. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1939. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.5 million years.
The Sun seen from there
From a planet around 2MASSW J2130446-084520, the Sun would look like a star of magnitude 6.96, in the direction where our sky has the constellation Leo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 4187A 5.01 light-years
- GJ 4217 8.93 light-years
- 2MASS J21542494-1023022 9.30 light-years
- 2MASS J21324898-1452544 9.44 light-years
- GJ 4188B 10.5 light-years
- μ Cap 11.1 light-years
- GJ 9721A 12.8 light-years
- GJ 9721B 12.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.