Star · M4V
WISEA J042236.95-044203.5
WISEA J042236.95-044203.5 is a main-sequence star of spectral type M4V in the constellation Eridanus, 101.1 light-years from the Sun.
| Constellation | Eridanus |
|---|---|
| Distance | 101.1 light-years (31.0 pc) |
| Apparent magnitude | magnitude 26.93 |
| Absolute magnitude | magnitude 24.47 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.55 × 10⁻⁷ L☉ |
| Radius | 0.0019 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 4h 22m 36.3s |
| Declination (J2000) | −4° 41′ 59″ |
| Space velocity (relative to the Sun) | 197.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.93. Visible from the whole Southern Hemisphere and north to latitude 85° N. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1925. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.8 million years.
The Sun seen from there
From a planet around WISEA J042236.95-044203.5, the Sun would look like a star of magnitude 7.29, in the direction where our sky has the constellation Hercules. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 20142 6.00 light-years
- 51 Eri 8.35 light-years
- HIP 20240 12.8 light-years
- GJ 3305 12.8 light-years
- GJ 1069 13.8 light-years
- Gl 165.2 14.2 light-years
- CWISEP J042455.68+000221.4 15.2 light-years
- HIP 21172 17.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.