109 Herculis
109 Herculis is a variable and double giant star of spectral class K2 in the constellation of Hercules.
109 Herculis visual magnitude is 3.84. Because of its moderate brightness, 109 Herculis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
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Finder chart for 109 Herculis.
Magnitude, Color, Spectral Class

The red dot in the diagram below shows where 109 Herculis is situated in the Hertzsprung–Russell diagram.

Star System Properties
109 Herculis is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 109 Herculis double sysyem:
Distance, Radial Speed, Proper Motion
109 Herculis is distant 128.35 light years from the Sun and it is moving towards the Sun at the speed of 58 kilometers per second.
Alternative Designations
Visibility from Your Location
Today's 109 Herculis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):