Star · ?
GJ 4356A
GJ 4356A is a main-sequence star of spectral type ? in the constellation Pegasus, 128.4 light-years from the Sun.
| Constellation | Pegasus |
|---|---|
| Distance | 128.4 light-years (39.4 pc) |
| Apparent magnitude | magnitude 14.24 |
| Absolute magnitude | magnitude 11.26 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.0121 L☉ |
| Radius | 0.275 R☉ |
| Mass | 0.277 M☉ (estimated) |
| Right ascension (J2000) | 23h 38m 54.9s |
| Declination (J2000) | +21° 01′ 21″ |
| Space velocity (relative to the Sun) | 61.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.24. Visible from the whole Northern Hemisphere and south to latitude 69° S. North of latitude 69° N 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 1898. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.3 million years.
The Sun seen from there
From a planet around GJ 4356A, the Sun would look like a star of magnitude 7.81, in the direction where our sky has the constellation Crater. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 115417 8.63 light-years
- HIP 117336 9.65 light-years
- 2MASS J23313131+2041273 12.5 light-years
- SDSS J233129.35+155222.5 12.6 light-years
- HIP 116213 14.9 light-years
- PSO J358.5527+22.1393 15.9 light-years
- HIP 493 16.4 light-years
- HIP 495 16.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.