Star · K5
GJ 4321A
GJ 4321A is a main-sequence star of spectral type K5 in the constellation Indus, 92.8 light-years from the Sun.
| Other names | HIP 114986 |
|---|---|
| Constellation | Indus |
| Distance | 92.8 light-years (28.5 pc) |
| Apparent magnitude | magnitude 8.71 |
| Absolute magnitude | magnitude 6.44 |
| Spectral type | K5 |
| Surface temperature | 4,630 K |
| Luminosity | 0.381 L☉ |
| Radius | 0.961 R☉ |
| Mass | 0.786 M☉ (estimated) |
| Right ascension (J2000) | 23h 17m 20.7s |
| Declination (J2000) | −66° 55′ 10″ |
| Space velocity (relative to the Sun) | 98.9 km/s |
In the sky
Too faint for the naked eye (magnitude 8.71); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 23° N. South of latitude 23° S it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1933. 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 4321A, the Sun would look like a star of magnitude 7.10, in the direction where our sky has the constellation Ursa Major. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.