Star · ?
GJ 4025
GJ 4025 is a main-sequence star of spectral type ? in the constellation Ophiuchus, 104.6 light-years from the Sun.
| Constellation | Ophiuchus |
|---|---|
| Distance | 104.6 light-years (32.1 pc) |
| Apparent magnitude | magnitude 11.48 |
| Absolute magnitude | magnitude 8.95 |
| Spectral type | ? |
| Surface temperature | 3,870 K |
| Luminosity | 0.0751 L☉ |
| Radius | 0.609 R☉ |
| Mass | 0.523 M☉ (estimated) |
| Right ascension (J2000) | 17h 45m 07.3s |
| Declination (J2000) | −8° 00′ 54″ |
| Space velocity (relative to the Sun) | 52.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.48. Visible from the whole Southern Hemisphere and north to latitude 82° N. 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 1921. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.9 million years.
The Sun seen from there
From a planet around GJ 4025, the Sun would look like a star of magnitude 7.36, in the direction where our sky has the constellation Orion. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 87464 5.68 light-years
- WISE J174640.78-033818.0 9.36 light-years
- HIP 85365 9.99 light-years
- HIP 86765 10.5 light-years
- ξ Ser 14.6 light-years
- HIP 86661 15.4 light-years
- HIP 84303 15.5 light-years
- HIP 89728 16.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.