Star · M4V
WISEPA J183058.57+454257.9
WISEPA J183058.57+454257.9 is a main-sequence star of spectral type M4V in the constellation Lyra, 101.1 light-years from the Sun.
| Constellation | Lyra |
|---|---|
| Distance | 101.1 light-years (31.0 pc) |
| Apparent magnitude | magnitude 23.45 |
| Absolute magnitude | magnitude 20.99 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 6.29 × 10⁻⁶ L☉ |
| Radius | 0.00944 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 18h 30m 58.5s |
| Declination (J2000) | +45° 42′ 56″ |
| Space velocity (relative to the Sun) | 24.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 23.45. Visible from the whole Northern Hemisphere and south to latitude 44° S. North of latitude 44° 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 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 WISEPA J183058.57+454257.9, the Sun would look like a star of magnitude 7.29, in the direction where our sky has the constellation Puppis. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J18131803+5101246 11.3 light-years
- CWISE J175628.97+505328.5 13.8 light-years
- Gl 722.1 13.8 light-years
- Gl 725.1 13.9 light-years
- HIP 92532 14.2 light-years
- SDSS J175024.01+422237.8 14.2 light-years
- GJ 4043 14.2 light-years
- WISEA J190722.56+472745.3 14.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.