Star · M2
Gl 133
Gl 133 is a main-sequence star of spectral type M2 in the constellation Cepheus, 45.5 light-years from the Sun.
| Other names | HIP 15638 |
|---|---|
| Constellation | Cepheus |
| Distance | 45.5 light-years (14.0 pc) |
| Apparent magnitude | magnitude 11.21 |
| Absolute magnitude | magnitude 10.49 |
| Spectral type | M2 |
| Surface temperature | 3,660 K |
| Luminosity | 0.0242 L☉ |
| Radius | 0.386 R☉ |
| Mass | 0.375 M☉ (estimated) |
| Right ascension (J2000) | 3h 21m 20.9s |
| Declination (J2000) | +79° 58′ 02″ |
| Space velocity (relative to the Sun) | 35.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.21. Visible from the whole Northern Hemisphere and south to latitude 10° S. North of latitude 10° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1980. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 807 thousand years.
The Sun seen from there
From a planet around Gl 133, the Sun would look like a star of magnitude 5.55, in the direction where our sky has the constellation Apus. It would be visible 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.