Star · M4V
WISEPC J201546.27+664645.1
WISEPC J201546.27+664645.1 is a main-sequence star of spectral type M4V in the constellation Draco, 82.5 light-years from the Sun.
| Constellation | Draco |
|---|---|
| Distance | 82.5 light-years (25.3 pc) |
| Apparent magnitude | magnitude 24.41 |
| Absolute magnitude | magnitude 22.39 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.73 × 10⁻⁶ L☉ |
| Radius | 0.00495 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 20h 15m 45.5s |
| Declination (J2000) | +66° 46′ 40″ |
| Space velocity (relative to the Sun) | 62.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 24.41. Visible from the whole Northern Hemisphere and south to latitude 23° S. North of latitude 23° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1943. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.5 million years.
The Sun seen from there
From a planet around WISEPC J201546.27+664645.1, the Sun would look like a star of magnitude 6.85, in the direction where our sky has the constellation Volans. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- WISE J195436.15+691541.3 5.17 light-years
- WISEA J205921.85+662725.2 6.73 light-years
- WISE J204356.42+622048.9 8.52 light-years
- HIP 102616 8.53 light-years
- HIP 103650 9.47 light-years
- GJ 4150 10.2 light-years
- GJ 4194 11.3 light-years
- GJ 4093 11.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.