Star · M4V
WISE J045746.08-020719.2
WISE J045746.08-020719.2 is a main-sequence star of spectral type M4V in the constellation Orion, 39.8 light-years from the Sun.
| Constellation | Orion |
|---|---|
| Distance | 39.8 light-years (12.2 pc) |
| Apparent magnitude | magnitude 22.40 |
| Absolute magnitude | magnitude 21.97 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.56 × 10⁻⁶ L☉ |
| Radius | 0.00603 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 4h 57m 46.0s |
| Declination (J2000) | −2° 07′ 18″ |
| Space velocity (relative to the Sun) | 8.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.40. Visible from the whole Southern Hemisphere and north to latitude 88° N. It stands highest at midnight in December, 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 706 thousand years.
The Sun seen from there
From a planet around WISE J045746.08-020719.2, the Sun would look like a star of magnitude 5.26, in the direction where our sky has the constellation Ophiuchus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J05002100+0330501 5.29 light-years
- Gl 204 6.04 light-years
- GJ 179 6.14 light-years
- WISEPA J050003.05-122343.2 7.14 light-years
- Gl 173 7.52 light-years
- SDSSp J053951.99-005902.0 7.64 light-years
- GJ 2045 8.65 light-years
- WISEPA J051317.28+060814.7 9.20 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.