Star · M1
GJ 3438
GJ 3438 is a main-sequence star of spectral type M1 in the constellation Auriga, 45.7 light-years from the Sun.
| Other names | HIP 35353 |
|---|---|
| Constellation | Auriga |
| Distance | 45.7 light-years (14.0 pc) |
| Apparent magnitude | magnitude 10.30 |
| Absolute magnitude | magnitude 9.57 |
| Spectral type | M1 |
| Surface temperature | 3,780 K |
| Luminosity | 0.0477 L☉ |
| Radius | 0.509 R☉ |
| Mass | 0.467 M☉ (estimated) |
| Right ascension (J2000) | 7h 18m 08.1s |
| Declination (J2000) | +39° 16′ 29″ |
| Space velocity (relative to the Sun) | 19.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.30. Visible from the whole Northern Hemisphere and south to latitude 51° S. North of latitude 51° N it never sets. 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 1980. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 811 thousand years.
The Sun seen from there
From a planet around GJ 3438, the Sun would look like a star of magnitude 5.56, in the direction where our sky has the constellation Corona Australis. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3423 4.88 light-years
- GJ 1092 5.13 light-years
- GJ 1096 6.54 light-years
- Gl 277A 7.27 light-years
- Gl 277B 7.28 light-years
- WISEPA J065609.60+420531.0 7.47 light-years
- Gl 278C 7.56 light-years
- WISE J064205.58+410155.5 7.89 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.