Star · M4V
CWISEP J153859.39+482659.1
CWISEP J153859.39+482659.1 is a main-sequence star of spectral type M4V in the constellation Boötes, 67.8 light-years from the Sun.
| Constellation | Boötes |
|---|---|
| Distance | 67.8 light-years (20.8 pc) |
| Apparent magnitude | magnitude 27.76 |
| Absolute magnitude | magnitude 26.17 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 5.35 × 10⁻⁸ L☉ |
| Radius | 8.70 × 10⁻⁴ R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 15h 38m 59.3s |
| Declination (J2000) | +48° 26′ 59″ |
| Space velocity (relative to the Sun) | 46.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 27.76. Visible from the whole Northern Hemisphere and south to latitude 42° S. North of latitude 42° N it never sets. 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 1958. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around CWISEP J153859.39+482659.1, the Sun would look like a star of magnitude 6.42, in the direction where our sky has the constellation Horologium. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3920 3.83 light-years
- 2MASS J15461461+4932114 6.46 light-years
- GJ 3911 8.25 light-years
- GJ 3898 8.31 light-years
- PSO J224.3820+47.4057 8.41 light-years
- GJ 3907 9.14 light-years
- GJ 3891 9.88 light-years
- Gl 616.2 10.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.