Star · K7
GJ 4043
GJ 4043 is a main-sequence star of spectral type K7 in the constellation Hercules, 90.1 light-years from the Sun.
| Other names | HIP 89087 |
|---|---|
| Constellation | Hercules |
| Distance | 90.1 light-years (27.6 pc) |
| Apparent magnitude | magnitude 10.00 |
| Absolute magnitude | magnitude 7.79 |
| Spectral type | K7 |
| Surface temperature | 4,180 K |
| Luminosity | 0.156 L☉ |
| Radius | 0.755 R☉ |
| Mass | 0.628 M☉ (estimated) |
| Right ascension (J2000) | 18h 10m 56.3s |
| Declination (J2000) | +49° 58′ 16″ |
| Space velocity (relative to the Sun) | 49.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.00. Visible from the whole Northern Hemisphere and south to latitude 40° S. North of latitude 40° N it never sets. 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 1936. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around GJ 4043, the Sun would look like a star of magnitude 7.04, in the direction where our sky has the constellation Puppis. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 705.2 5.06 light-years
- WISE J175929.37+544204.7 8.10 light-years
- CWISE J175628.97+505328.5 8.74 light-years
- GJ 4011 9.78 light-years
- Gl 732.1 11.4 light-years
- HD 158259 12.0 light-years
- WISE J173421.02+502349.9 12.3 light-years
- Gl 725.1 13.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.