109 Herculis is an orange giant star in the constellation Hercules. At 119 light years away, it is the 440th brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.85. 109 Herculis is the primary component of a multiple-star system. The iron abundance of 109 Herculis is -0.06 (87.1% of the Sun). It is moving through the Galaxy at a speed of 79.5 km/s relative to the Sun. Its projected Galactic orbit carries it between 14,900 and 24,100 light years from the center of the Galaxy. It will come closest to the Sun 328,000 years from now when it will brighten to magnitude 3.02 from a distance of 81 light years.
Sky position: RA 18h 23.7m, Dec +21° 46.2'
Common designations: 109 Herculis, HIP 90139, HD 169414, HR 6895
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