Star · M7
Gl 473B
Gl 473B is a main-sequence star of spectral type M7 in the constellation Virgo, 14.6 light-years from the Sun.
| Constellation | Virgo |
|---|---|
| Distance | 14.6 light-years (4.47 pc) |
| Apparent magnitude | magnitude 13.30 |
| Absolute magnitude | magnitude 15.05 |
| Spectral type | M7 |
| Surface temperature | 3,730 K |
| Luminosity | 3.27 × 10⁻⁴ L☉ |
| Radius | 0.0432 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 33m 17.2s |
| Declination (J2000) | +9° 01′ 15″ |
| Space velocity (relative to the Sun) | 36.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.30. Visible from the whole Northern Hemisphere and south to latitude 81° S. 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 2011. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 259 thousand years.
The Sun seen from there
From a planet around Gl 473B, the Sun would look like a star of magnitude 3.08, in the direction where our sky has the constellation Cetus. 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.