Star · ?
GJ 3064
GJ 3064 is a white dwarf of spectral type ? in the constellation Cetus, 73.2 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 73.2 light-years (22.4 pc) |
| Apparent magnitude | magnitude 15.25 |
| Absolute magnitude | magnitude 13.49 |
| Spectral type | ? |
| Surface temperature | 8,000 K |
| Luminosity | 3.61 × 10⁻⁴ L☉ |
| Radius | 0.012 R☉ |
| Mass | 0.6 M☉ (estimated) |
| Right ascension (J2000) | 0h 55m 50.1s |
| Declination (J2000) | −11° 27′ 29″ |
| Space velocity (relative to the Sun) | 47.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.25. Visible from the whole Southern Hemisphere and north to latitude 79° N. South of latitude 79° S it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1953. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around GJ 3064, the Sun would look like a star of magnitude 6.59, in the direction where our sky has the constellation Virgo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 4845 4.96 light-years
- HIP 6008 8.21 light-years
- HIP 3979 8.32 light-years
- Gl 56.1 8.58 light-years
- 2MASS J00332386-1521309 8.85 light-years
- Gl 54.2B 9.16 light-years
- 37 Cet 9.27 light-years
- SIPS J0050-1538 9.63 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.