Star · ?
GJ 9677B
GJ 9677B is a main-sequence star of spectral type ? in the constellation Cygnus, 88.8 light-years from the Sun.
| Constellation | Cygnus |
|---|---|
| Distance | 88.8 light-years (27.2 pc) |
| Apparent magnitude | magnitude 13.50 |
| Absolute magnitude | magnitude 11.33 |
| Spectral type | ? |
| Surface temperature | 3,820 K |
| Luminosity | 0.00892 L☉ |
| Radius | 0.215 R☉ |
| Mass | 0.243 M☉ (estimated) |
| Right ascension (J2000) | 19h 56m 24.8s |
| Declination (J2000) | +59° 09′ 17″ |
| Space velocity (relative to the Sun) | 57.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.50. Visible from the whole Northern Hemisphere and south to latitude 31° S. North of latitude 31° 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 1937. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around GJ 9677B, the Sun would look like a star of magnitude 7.00, in the direction where our sky has the constellation Carina. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 9677A 0.19 light-years
- HIP 97438 1.81 light-years
- HIP 99355 6.41 light-years
- CWISE J194201.42+534830.5 9.31 light-years
- WISE J204356.42+622048.9 10.5 light-years
- GJ 4150 11.1 light-years
- GJ 9706 11.1 light-years
- HIP 96395 11.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.