Star · ?
GJ 3613
GJ 3613 is a main-sequence star of spectral type ? in the constellation Ursa Major, 101.3 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 101.3 light-years (31.1 pc) |
| Apparent magnitude | magnitude 13.49 |
| Absolute magnitude | magnitude 11.03 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.015 L☉ |
| Radius | 0.306 R☉ |
| Mass | 0.305 M☉ (estimated) |
| Right ascension (J2000) | 10h 38m 30.5s |
| Declination (J2000) | +48° 31′ 45″ |
| Space velocity (relative to the Sun) | 31.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.49. Visible from the whole Northern Hemisphere and south to latitude 41° S. North of latitude 41° N it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1925. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.8 million years.
The Sun seen from there
From a planet around GJ 3613, the Sun would look like a star of magnitude 7.29, in the direction where our sky has the constellation Grus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 53637 10.5 light-years
- HIP 49555 10.9 light-years
- HIP 50606 11.4 light-years
- GJ 3641 12.2 light-years
- WISEA J095729.41+462413.5 12.8 light-years
- HIP 52470 13.9 light-years
- 2MASS J10461875+4441149 14.1 light-years
- 2MASS J09593276+4523309 14.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.