Star · M3
Gl 455
Gl 455 is a main-sequence star of spectral type M3 in the constellation Ursa Major, 57.1 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 57.1 light-years (17.5 pc) |
| Apparent magnitude | magnitude 12.84 |
| Absolute magnitude | magnitude 11.62 |
| Spectral type | M3 |
| Surface temperature | 3,450 K |
| Luminosity | 0.012 L☉ |
| Radius | 0.306 R☉ |
| Mass | 0.277 M☉ (estimated) |
| Right ascension (J2000) | 12h 02m 19.0s |
| Declination (J2000) | +28° 35′ 16″ |
| Space velocity (relative to the Sun) | 65.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.84. Visible from the whole Northern Hemisphere and south to latitude 61° S. North of latitude 61° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1969. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.0 million years.
The Sun seen from there
From a planet around Gl 455, the Sun would look like a star of magnitude 6.05, in the direction where our sky has the constellation Sculptor. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3691 5.10 light-years
- SDSS J121951.45+312849.4 7.44 light-years
- Gl 433.1 7.96 light-years
- GJ 3657 9.68 light-years
- Gl 430.1 10.2 light-years
- WISE J125015.56+262846.9 10.7 light-years
- Gl 486.1 10.9 light-years
- Gl 490A 13.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.