Star · F5V
GJ 9843
GJ 9843 is a main-sequence star of spectral type F5V in the constellation Cepheus, 130.0 light-years from the Sun.
| Other names | HIP 117681 |
|---|---|
| Constellation | Cepheus |
| Distance | 130.0 light-years (39.9 pc) |
| Apparent magnitude | magnitude 6.56 |
| Absolute magnitude | magnitude 3.56 |
| Spectral type | F5V |
| Surface temperature | 6,720 K |
| Luminosity | 3.21 L☉ |
| Radius | 1.32 R☉ |
| Mass | 1.34 M☉ (estimated) |
| Right ascension (J2000) | 23h 51m 57.7s |
| Declination (J2000) | +77° 35′ 58″ |
| Space velocity (relative to the Sun) | 53.0 km/s |
In the sky
Too faint for the naked eye (magnitude 6.56); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 12° S. North of latitude 12° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1896. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.3 million years.
The Sun seen from there
From a planet around GJ 9843, the Sun would look like a star of magnitude 7.83, in the direction where our sky has the constellation Chamaeleon. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 115777 4.00 light-years
- HIP 2422 7.17 light-years
- GJ 3050 9.62 light-years
- HIP 4041 11.0 light-years
- HIP 116845 11.2 light-years
- HIP 7338 12.2 light-years
- HIP 111494 12.3 light-years
- 2MASS J01390900+8109597 14.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.