Star · M2
GJ 4064
GJ 4064 is a main-sequence star of spectral type M2 in the constellation Lyra, 60.6 light-years from the Sun.
| Constellation | Lyra |
|---|---|
| Distance | 60.6 light-years (18.6 pc) |
| Apparent magnitude | magnitude 11.78 |
| Absolute magnitude | magnitude 10.43 |
| Spectral type | M2 |
| Surface temperature | 3,890 K |
| Luminosity | 0.0188 L☉ |
| Radius | 0.302 R☉ |
| Mass | 0.336 M☉ (estimated) |
| Right ascension (J2000) | 18h 35m 17.5s |
| Declination (J2000) | +41° 29′ 13″ |
| Space velocity (relative to the Sun) | 33.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.78. Visible from the whole Northern Hemisphere and south to latitude 49° S. North of latitude 49° N it never sets. It stands highest at midnight in June, 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 GJ 4064, the Sun would look like a star of magnitude 6.18, in the direction where our sky has the constellation Columba. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- WISE J180901.07+383805.4 6.41 light-years
- Gl 709 6.61 light-years
- GJ 4089 7.39 light-years
- GJ 4083 8.39 light-years
- WISEP J190648.47+401106.8 8.57 light-years
- GJ 4105 9.97 light-years
- Gl 720B 10.7 light-years
- GJ 720 A 10.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.