Star · M4
GJ 3473
GJ 3473 is a main-sequence star of spectral type M4 in the constellation Canis Minor, 89.1 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Other names | GJ 3473A |
|---|---|
| Constellation | Canis Minor |
| Distance | 89.1 light-years (27.3 pc) |
| Apparent magnitude | magnitude 13.70 |
| Absolute magnitude | magnitude 11.52 |
| Spectral type | M4 |
| Surface temperature | 3,350 K |
| Luminosity | 0.015 L☉ |
| Radius | 0.364 R☉ |
| Mass | 0.36 M☉ |
| Metallicity [Fe/H] | 0.11 |
| Right ascension (J2000) | 8h 02m 22.8s |
| Declination (J2000) | +3° 20′ 28″ |
| Space velocity (relative to the Sun) | 71.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.70. Visible from the whole Northern Hemisphere and south to latitude 87° 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 1937. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around GJ 3473, the Sun would look like a star of magnitude 7.01, in the direction where our sky has the constellation Aquila. It would be invisible to the naked eye.
Planets
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 287 7.24 light-years
- GJ 3461 8.52 light-years
- CWISE J080436.67-000028.6 9.08 light-years
- 2MASS J07415784+0531568 9.33 light-years
- GJ 3474B 9.54 light-years
- WISEA J075438.20+090044.9 9.69 light-years
- HIP 39506 12.7 light-years
- 1 Hya 13.9 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.