Star · M4V
WISEA J122221.95-213948.6
WISEA J122221.95-213948.6 is a main-sequence star of spectral type M4V in the constellation Corvus, 91.3 light-years from the Sun.
| Constellation | Corvus |
|---|---|
| Distance | 91.3 light-years (28.0 pc) |
| Apparent magnitude | magnitude 21.59 |
| Absolute magnitude | magnitude 19.35 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.85 × 10⁻⁵ L☉ |
| Radius | 0.0201 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 22m 22.2s |
| Declination (J2000) | −21° 39′ 47″ |
| Space velocity (relative to the Sun) | 47.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.59. Visible from the whole Southern Hemisphere and north to latitude 68° N. South of latitude 68° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1935. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around WISEA J122221.95-213948.6, the Sun would look like a star of magnitude 7.07, in the direction where our sky has the constellation Pisces. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.