Star · M4V
WISEA J040702.42+190945.8
WISEA J040702.42+190945.8 is a main-sequence star of spectral type M4V in the constellation Taurus, 101.1 light-years from the Sun.
| Constellation | Taurus |
|---|---|
| Distance | 101.1 light-years (31.0 pc) |
| Apparent magnitude | magnitude 25.23 |
| Absolute magnitude | magnitude 22.77 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.22 × 10⁻⁶ L☉ |
| Radius | 0.00416 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 4h 07m 02.3s |
| Declination (J2000) | +19° 09′ 47″ |
| Space velocity (relative to the Sun) | 50.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 25.23. Visible from the whole Northern Hemisphere and south to latitude 71° S. North of latitude 71° N it never sets. 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 J040702.42+190945.8, the Sun would look like a star of magnitude 7.29, in the direction where our sky has the constellation Scorpius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASSI J0409095+210439 4.66 light-years
- HIP 19981 8.45 light-years
- ω² Tau 9.40 light-years
- HIP 18097 9.42 light-years
- SIMP J04172478+1634364 10.7 light-years
- HIP 19325 12.0 light-years
- HIP 17794 12.7 light-years
- CWISE J033817.87+171744.1 13.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.