Star · M4V
WISE J184041.77+293229.2
WISE J184041.77+293229.2 is a main-sequence star of spectral type M4V in the constellation Lyra, 91.3 light-years from the Sun.
| Constellation | Lyra |
|---|---|
| Distance | 91.3 light-years (28.0 pc) |
| Apparent magnitude | magnitude 25.39 |
| Absolute magnitude | magnitude 23.15 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 8.60 × 10⁻⁷ L☉ |
| Radius | 0.00349 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 18h 40m 41.8s |
| Declination (J2000) | +29° 32′ 30″ |
| Space velocity (relative to the Sun) | 23.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 25.39. Visible from the whole Northern Hemisphere and south to latitude 60° S. North of latitude 60° 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 1935. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around WISE J184041.77+293229.2, the Sun would look like a star of magnitude 7.07, in the direction where our sky has the constellation Canis Major. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 91489 8.27 light-years
- HIP 89912 8.30 light-years
- PSO J277.3873+26.0116 8.36 light-years
- HIP 93926 9.68 light-years
- HIP 92270 11.2 light-years
- Gl 747.2 12.4 light-years
- GJ 4047 13.1 light-years
- HIP 91605 13.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.