Star · K8
Gl 747.2
Gl 747.2 is a main-sequence star of spectral type K8 in the constellation Lyra, 93.9 light-years from the Sun.
| Other names | HIP 94056 |
|---|---|
| Constellation | Lyra |
| Distance | 93.9 light-years (28.8 pc) |
| Apparent magnitude | magnitude 9.42 |
| Absolute magnitude | magnitude 7.12 |
| Spectral type | K8 |
| Surface temperature | 4,240 K |
| Luminosity | 0.273 L☉ |
| Radius | 0.971 R☉ |
| Mass | 0.723 M☉ (estimated) |
| Right ascension (J2000) | 19h 08m 53.9s |
| Declination (J2000) | +34° 03′ 44″ |
| Space velocity (relative to the Sun) | 16.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.42. Visible from the whole Northern Hemisphere and south to latitude 56° S. North of latitude 56° N 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 1932. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.7 million years.
The Sun seen from there
From a planet around Gl 747.2, the Sun would look like a star of magnitude 7.13, in the direction where our sky has the constellation Puppis. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 95223 4.77 light-years
- HIP 93926 8.26 light-years
- GJ 4099 8.92 light-years
- HIP 92532 10.7 light-years
- WISE J184041.77+293229.2 12.4 light-years
- HIP 96185 13.4 light-years
- Gl 754.2 13.4 light-years
- HIP 97640 14.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.