Star · ?
GJ 3513
GJ 3513 is a main-sequence star of spectral type ? in the constellation Hydra, 96.9 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 96.9 light-years (29.7 pc) |
| Apparent magnitude | magnitude 14.00 |
| Absolute magnitude | magnitude 11.64 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.00857 L☉ |
| Radius | 0.232 R☉ |
| Mass | 0.239 M☉ (estimated) |
| Right ascension (J2000) | 8h 44m 22.5s |
| Declination (J2000) | −10° 24′ 11″ |
| Space velocity (relative to the Sun) | 85.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.00. Visible from the whole Southern Hemisphere and north to latitude 80° N. South of latitude 80° S 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 1929. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.7 million years.
The Sun seen from there
From a planet around GJ 3513, the Sun would look like a star of magnitude 7.19, in the direction where our sky has the constellation Delphinus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HD 73583 8.24 light-years
- WISEA J084254.56-061023.7 13.6 light-years
- PSO J136.5380-14.3267 13.9 light-years
- HIP 44526 14.1 light-years
- PSO J136.5494-06.1944 15.1 light-years
- Gl 316 15.3 light-years
- 1 Hya 15.9 light-years
- GJ 3501A 16.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.