Star · M4V
WISEA J104216.89-003935.9
WISEA J104216.89-003935.9 is a main-sequence star of spectral type M4V in the constellation Sextans, 94.6 light-years from the Sun.
| Constellation | Sextans |
|---|---|
| Distance | 94.6 light-years (29.0 pc) |
| Apparent magnitude | magnitude 26.68 |
| Absolute magnitude | magnitude 24.37 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.81 × 10⁻⁷ L☉ |
| Radius | 0.002 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 10h 42m 17.2s |
| Declination (J2000) | −0° 39′ 33″ |
| Space velocity (relative to the Sun) | 68.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.68. Visible from the whole Southern Hemisphere and north to latitude 89° N. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1931. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.7 million years.
The Sun seen from there
From a planet around WISEA J104216.89-003935.9, the Sun would look like a star of magnitude 7.14, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J104922.45+012559.2 5.51 light-years
- HIP 51386 8.65 light-years
- SDSS J102109.69-030420.1 9.96 light-years
- GJ 3624 10.3 light-years
- K2-239 11.1 light-years
- GJ 3644 12.5 light-years
- HIP 51127 13.2 light-years
- SDSS J104409.43+042937.6 13.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.