Star · M4V
CWISEP J100854.84+203136.6
CWISEP J100854.84+203136.6 is a main-sequence star of spectral type M4V in the constellation Leo, 88.1 light-years from the Sun.
| Constellation | Leo |
|---|---|
| Distance | 88.1 light-years (27.0 pc) |
| Apparent magnitude | magnitude 28.23 |
| Absolute magnitude | magnitude 26.07 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 5.84 × 10⁻⁸ L☉ |
| Radius | 9.10 × 10⁻⁴ R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 10h 08m 55.0s |
| Declination (J2000) | +20° 31′ 38″ |
| Space velocity (relative to the Sun) | 27.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 28.23. Visible from the whole Northern Hemisphere and south to latitude 69° S. North of latitude 69° N it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1938. 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 CWISEP J100854.84+203136.6, the Sun would look like a star of magnitude 6.99, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.