Star · ?
Gl 280B
Gl 280B is a white dwarf of spectral type ? in the constellation Canis Minor, 11.4 light-years from the Sun.
| Constellation | Canis Minor |
|---|---|
| Distance | 11.4 light-years (3.50 pc) |
| Apparent magnitude | magnitude 10.70 |
| Absolute magnitude | magnitude 12.98 |
| Spectral type | ? |
| Surface temperature | 8,000 K |
| Luminosity | 5.80 × 10⁻⁴ L☉ |
| Radius | 0.012 R☉ |
| Mass | 0.6 M☉ (estimated) |
| Right ascension (J2000) | 7h 39m 18.0s |
| Declination (J2000) | +5° 13′ 37″ |
| Space velocity (relative to the Sun) | 20.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.70. Visible from the whole Northern Hemisphere and south to latitude 85° S. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 2015. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 202 thousand years.
The Sun seen from there
From a planet around Gl 280B, the Sun would look like a star of magnitude 2.55, in the direction where our sky has the constellation Aquila. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Procyon 0.05 light-years
- Luyten's Star 1.12 light-years
- UGPS J072227.51-054031.2 3.24 light-years
- Gl 234B 4.60 light-years
- Ross 614 4.60 light-years
- GJ 1111 4.94 light-years
- Gl 244B 5.19 light-years
- Sirius 5.22 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.