Star · K7
GJ 4179
GJ 4179 is a main-sequence star of spectral type K7 in the constellation Capricornus, 71.3 light-years from the Sun.
| Constellation | Capricornus |
|---|---|
| Distance | 71.3 light-years (21.9 pc) |
| Apparent magnitude | magnitude 10.33 |
| Absolute magnitude | magnitude 8.63 |
| Spectral type | K7 |
| Surface temperature | 3,920 K |
| Luminosity | 0.0949 L☉ |
| Radius | 0.669 R☉ |
| Mass | 0.555 M☉ (estimated) |
| Right ascension (J2000) | 21h 05m 44.2s |
| Declination (J2000) | −16° 55′ 18″ |
| Space velocity (relative to the Sun) | 6.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.33. Visible from the whole Southern Hemisphere and north to latitude 73° N. South of latitude 73° S it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1955. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around GJ 4179, the Sun would look like a star of magnitude 6.53, in the direction where our sky has the constellation Cancer. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- CWISE J205701.64-170407.3 6.58 light-years
- Gl 799.1 7.87 light-years
- PSO J318.5338-22.8603 7.92 light-years
- GJ 4197 9.56 light-years
- Gl 800B 11.3 light-years
- Gl 800A 11.3 light-years
- Gl 817 11.6 light-years
- CFBDS J204803.61-183212.7 11.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.