Star · M4V
WISEA J221216.27-693121.6
WISEA J221216.27-693121.6 is a main-sequence star of spectral type M4V in the constellation Indus, 40.5 light-years from the Sun.
| Constellation | Indus |
|---|---|
| Distance | 40.5 light-years (12.4 pc) |
| Apparent magnitude | magnitude 27.24 |
| Absolute magnitude | magnitude 26.77 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 3.07 × 10⁻⁸ L☉ |
| Radius | 6.60 × 10⁻⁴ R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 22h 12m 14.8s |
| Declination (J2000) | −69° 31′ 21″ |
| Space velocity (relative to the Sun) | 46.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 27.24. Visible from the whole Southern Hemisphere and north to latitude 20° N. South of latitude 20° S it never sets. 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 1986. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 718 thousand years.
The Sun seen from there
From a planet around WISEA J221216.27-693121.6, the Sun would look like a star of magnitude 5.30, 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 865 4.33 light-years
- HD 222237 6.10 light-years
- WISE J212100.87-623921.6 6.90 light-years
- WISEP J235941.07-733504.8 6.99 light-years
- WISEPA J201824.96-742325.9 7.01 light-years
- Gl 842 7.27 light-years
- GJ 1251 7.52 light-years
- LHS 3844 8.31 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.