Star · G2V
Gl 800B
Gl 800B is a main-sequence star of spectral type G2V in the constellation Capricornus, 62.2 light-years from the Sun.
| Constellation | Capricornus |
|---|---|
| Distance | 62.2 light-years (19.1 pc) |
| Apparent magnitude | magnitude 14.00 |
| Absolute magnitude | magnitude 12.60 |
| Spectral type | G2V |
| Surface temperature | 5,780 K |
| Luminosity | 8.48 × 10⁻⁴ L☉ |
| Radius | 0.0291 R☉ |
| Mass | 0.0875 M☉ (estimated) |
| Right ascension (J2000) | 20h 42m 57.5s |
| Declination (J2000) | −18° 55′ 12″ |
| Space velocity (relative to the Sun) | 99.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.00. Visible from the whole Southern Hemisphere and north to latitude 71° N. South of latitude 71° S it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1964. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.1 million years.
The Sun seen from there
From a planet around Gl 800B, the Sun would look like a star of magnitude 6.23, in the direction where our sky has the constellation Cancer. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 800A 0.00 light-years
- CWISE J205701.64-170407.3 5.22 light-years
- Gl 817 6.43 light-years
- Gl 799.1 8.91 light-years
- Gl 819A 9.65 light-years
- Gl 819B 9.69 light-years
- WISEA J211456.86-180519.0 10.3 light-years
- WISEA J201833.67-141720.3 10.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.