Star · M4V
WISE J173035.99+420742.5
WISE J173035.99+420742.5 is a main-sequence star of spectral type M4V in the constellation Hercules, 114.2 light-years from the Sun.
| Constellation | Hercules |
|---|---|
| Distance | 114.2 light-years (35.0 pc) |
| Apparent magnitude | magnitude 24.45 |
| Absolute magnitude | magnitude 21.73 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 3.19 × 10⁻⁶ L☉ |
| Radius | 0.00673 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 17h 30m 36.1s |
| Declination (J2000) | +42° 07′ 45″ |
| Space velocity (relative to the Sun) | 46.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 24.45. Visible from the whole Northern Hemisphere and south to latitude 48° S. North of latitude 48° N it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1912. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.0 million years.
The Sun seen from there
From a planet around WISE J173035.99+420742.5, the Sun would look like a star of magnitude 7.55, in the direction where our sky has the constellation Columba. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 86616 10.1 light-years
- HIP 87382 10.3 light-years
- HIP 85977 11.9 light-years
- SDSS J175024.01+422237.8 13.9 light-years
- GJ 3979 15.0 light-years
- HIP 89282 15.8 light-years
- HIP 84855 17.0 light-years
- HIP 85639 17.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.