Star · K7V
GJ 9784
GJ 9784 is a main-sequence star of spectral type K7V in the constellation Pegasus, 72.6 light-years from the Sun.
| Other names | HIP 110951 |
|---|---|
| Constellation | Pegasus |
| Distance | 72.6 light-years (22.3 pc) |
| Apparent magnitude | magnitude 10.73 |
| Absolute magnitude | magnitude 8.99 |
| Spectral type | K7V |
| Surface temperature | 4,020 K |
| Luminosity | 0.0607 L☉ |
| Radius | 0.508 R☉ |
| Mass | 0.496 M☉ (estimated) |
| Right ascension (J2000) | 22h 28m 45.9s |
| Declination (J2000) | +18° 55′ 54″ |
| Space velocity (relative to the Sun) | 51.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.73. Visible from the whole Northern Hemisphere and south to latitude 71° S. North of latitude 71° N 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 1953. 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 9784, the Sun would look like a star of magnitude 6.57, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- WISEPC J223937.55+161716.2 5.86 light-years
- Gl 857.1B 6.43 light-years
- Gl 857.1A 6.47 light-years
- WISEA J221841.38+143003.4 6.92 light-years
- GJ 1271 9.04 light-years
- GJ 9798 9.44 light-years
- GJ 4240 9.64 light-years
- 2MASS J22425317+2542573 9.83 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.