Star · ?
GJ 3504
GJ 3504 is a main-sequence star of spectral type ? in the constellation Hydra, 66.8 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 66.8 light-years (20.5 pc) |
| Apparent magnitude | magnitude 18.44 |
| Absolute magnitude | magnitude 16.88 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 6.83 × 10⁻⁵ L☉ |
| Radius | 0.0207 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 8h 32m 30.9s |
| Declination (J2000) | −1° 34′ 34″ |
| Space velocity (relative to the Sun) | 48.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 18.44. Visible from the whole Southern Hemisphere and north to latitude 88° N. 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 1959. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around GJ 3504, the Sun would look like a star of magnitude 6.39, in the direction where our sky has the constellation Aquila. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3507 2.47 light-years
- GJ 3502B 5.21 light-years
- GJ 328 7.53 light-years
- HIP 40774 8.18 light-years
- SDSS J083048.80+012831.1 9.93 light-years
- GJ 3485 10.6 light-years
- 2MASSW J0832045-012835 11.0 light-years
- Gl 292.2 11.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.