Star · K4V
Gl 773A
Gl 773A is a main-sequence star of spectral type K4V in the constellation Sagittarius, 58.4 light-years from the Sun.
| Other names | HIP 98204 |
|---|---|
| Constellation | Sagittarius |
| Distance | 58.4 light-years (17.9 pc) |
| Apparent magnitude | magnitude 9.29 |
| Absolute magnitude | magnitude 8.02 |
| Spectral type | K4V |
| Surface temperature | 4,090 K |
| Luminosity | 0.137 L☉ |
| Radius | 0.738 R☉ |
| Mass | 0.609 M☉ (estimated) |
| Right ascension (J2000) | 19h 57m 19.7s |
| Declination (J2000) | −12° 34′ 04″ |
| Space velocity (relative to the Sun) | 45.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.29. Visible from the whole Southern Hemisphere and north to latitude 77° N. South of latitude 77° S it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1968. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.0 million years.
The Sun seen from there
From a planet around Gl 773A, the Sun would look like a star of magnitude 6.10, in the direction where our sky has the constellation Cancer. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 773B 0.36 light-years
- GJ 4133 3.28 light-years
- WISE J200804.71-083428.5 5.32 light-years
- GJ 1240 6.43 light-years
- GJ 4132 6.74 light-years
- 2MASS J20025073-0521524 7.46 light-years
- Gl 782 10.6 light-years
- Gl 773.3 11.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.