Star · ?
Gl 401B
Gl 401B is a white dwarf of spectral type ? in the constellation Hydra, 61.3 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 61.3 light-years (18.8 pc) |
| Apparent magnitude | magnitude 16.50 |
| Absolute magnitude | magnitude 15.13 |
| Spectral type | ? |
| Surface temperature | 8,000 K |
| Luminosity | 8.02 × 10⁻⁵ L☉ |
| Radius | 0.012 R☉ |
| Mass | 0.6 M☉ (estimated) |
| Right ascension (J2000) | 10h 45m 38.9s |
| Declination (J2000) | −19° 06′ 50″ |
| Space velocity (relative to the Sun) | 174.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 16.50. 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 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 1965. 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 401B, the Sun would look like a star of magnitude 6.20, in the direction where our sky has the constellation Pegasus. 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.