Star · K4V
GJ 2084A
GJ 2084A is a main-sequence star of spectral type K4V in the constellation Crater, 137.3 light-years from the Sun.
| Other names | HIP 55505 |
|---|---|
| Constellation | Crater |
| Distance | 137.3 light-years (42.1 pc) |
| Apparent magnitude | magnitude 8.89 |
| Absolute magnitude | magnitude 5.77 |
| Spectral type | K4V |
| Surface temperature | 4,410 K |
| Luminosity | 0.824 L☉ |
| Radius | 1.56 R☉ |
| Mass | 0.953 M☉ (estimated) |
| Right ascension (J2000) | 11h 22m 05.3s |
| Declination (J2000) | −24° 46′ 40″ |
| Space velocity (relative to the Sun) | 20.9 km/s |
In the sky
Too faint for the naked eye (magnitude 8.89); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 65° N. South of latitude 65° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1889. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.4 million years.
The Sun seen from there
From a planet around GJ 2084A, the Sun would look like a star of magnitude 7.95, in the direction where our sky has the constellation Pegasus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HD 98649 3.81 light-years
- HIP 54530 7.91 light-years
- PSO J168.1800-27.2264 10.2 light-years
- HIP 57039 11.4 light-years
- 2MASS J11001126-2718386 13.2 light-years
- χ¹ Hya 13.4 light-years
- HIP 56245 14.3 light-years
- HIP 54597 14.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.