Star · ?
Gl 458B
Gl 458B is a main-sequence star of spectral type ? in the constellation Ursa Major, 49.7 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 49.7 light-years (15.2 pc) |
| Apparent magnitude | magnitude 13.33 |
| Absolute magnitude | magnitude 12.41 |
| Spectral type | ? |
| Surface temperature | 3,640 K |
| Luminosity | 0.00427 L☉ |
| Radius | 0.165 R☉ |
| Mass | 0.177 M☉ (estimated) |
| Right ascension (J2000) | 12h 12m 21.3s |
| Declination (J2000) | +54° 29′ 17″ |
| Space velocity (relative to the Sun) | 18.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.33. Visible from the whole Northern Hemisphere and south to latitude 36° S. North of latitude 36° 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 1976. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 882 thousand years.
The Sun seen from there
From a planet around Gl 458B, the Sun would look like a star of magnitude 5.75, in the direction where our sky has the constellation Phoenix. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HD 238090 0.02 light-years
- GJ 3753 4.74 light-years
- Gl 483 5.25 light-years
- 2MASS J10511900+5613086 10.3 light-years
- WISEPC J132004.16+603426.2 10.6 light-years
- Gl 462 11.3 light-years
- CWISEP J104756.81+545741.6 11.7 light-years
- SDSS J121440.95+631643.4 12.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.