Star · M1.0
GJ 649
GJ 649 is a main-sequence star of spectral type M1.0 in the constellation Hercules, 33.9 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | Gl 649 · HIP 83043 |
|---|---|
| Constellation | Hercules |
| Distance | 33.9 light-years (10.4 pc) |
| Apparent magnitude | magnitude 9.70 |
| Absolute magnitude | magnitude 9.62 |
| Spectral type | M1.0 |
| Surface temperature | 3,730 K |
| Luminosity | 0.0436 L☉ |
| Radius | 0.5 R☉ |
| Mass | 0.51 M☉ |
| Age | 0.4 billion years |
| Metallicity [Fe/H] | -0.15 |
| Right ascension (J2000) | 16h 58m 08.9s |
| Declination (J2000) | +25° 44′ 38″ |
| Space velocity (relative to the Sun) | 25.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.70. Visible from the whole Northern Hemisphere and south to latitude 64° S. North of latitude 64° N it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1992. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 601 thousand years.
The Sun seen from there
From a planet around GJ 649, the Sun would look like a star of magnitude 4.91, in the direction where our sky has the constellation Lepus. It would be visible to the naked eye.
Planets
- GJ 649 b 600-day orbit · 10.8 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3976 2.20 light-years
- Gl 669A 3.20 light-years
- Gl 669B 3.20 light-years
- ζ Her 4.29 light-years
- Gl 635B 4.38 light-years
- Gl 638 5.08 light-years
- 2MASS J17312974+2721233 7.03 light-years
- WISEPA J161441.45+173936.7 7.58 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.