Star · G2V
GJ 4103
GJ 4103 is a main-sequence star of spectral type G2V in the constellation Lyra, 276.9 light-years from the Sun.
| Other names | HIP 94273 |
|---|---|
| Constellation | Lyra |
| Distance | 276.9 light-years (84.9 pc) |
| Apparent magnitude | magnitude 9.46 |
| Absolute magnitude | magnitude 4.82 |
| Spectral type | G2V |
| Surface temperature | 5,820 K |
| Luminosity | 1.09 L☉ |
| Radius | 1.03 R☉ |
| Mass | 1.02 M☉ (estimated) |
| Right ascension (J2000) | 19h 11m 19.0s |
| Declination (J2000) | +32° 43′ 46″ |
| Space velocity (relative to the Sun) | 71.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.46. Visible from the whole Northern Hemisphere and south to latitude 57° S. North of latitude 57° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1749. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.9 million years.
The Sun seen from there
From a planet around GJ 4103, the Sun would look like a star of magnitude 9.47, in the direction where our sky has the constellation Canis Major. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 95769 19.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.