Star · M4V
WISE J163645.56-074325.1
WISE J163645.56-074325.1 is a main-sequence star of spectral type M4V in the constellation Ophiuchus, 97.8 light-years from the Sun.
| Constellation | Ophiuchus |
|---|---|
| Distance | 97.8 light-years (30.0 pc) |
| Apparent magnitude | magnitude 24.30 |
| Absolute magnitude | magnitude 21.91 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.69 × 10⁻⁶ L☉ |
| Radius | 0.00618 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 16h 36m 45.6s |
| Declination (J2000) | −7° 43′ 24″ |
| Space velocity (relative to the Sun) | 22.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 24.30. Visible from the whole Southern Hemisphere and north to latitude 82° N. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1928. 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 WISE J163645.56-074325.1, the Sun would look like a star of magnitude 7.22, in the direction where our sky has the constellation Taurus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 81084 4.95 light-years
- SDSS J163359.23-064056.5 6.84 light-years
- Gl 634.1 8.65 light-years
- Gl 618.1 9.26 light-years
- GJ 3969 10.2 light-years
- HIP 81030 10.3 light-years
- GJ 3957 11.2 light-years
- HIP 82169 12.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.