109 Herculis
109 Herculis is a variable and double giant star in the constellation of Hercules.
109 Herculis visual magnitude is 3.84. Because of its moderate brightness, 109 Herculis should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.
The proper motion of 109 Herculis is 0.196 arcsec per year in Right Ascension and -0.242 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Key facts about 109 Herculis
109 Herculis is above the horizon from Greenwich, United Kingdom.
Altitude: 59.7°
Azimuth: 166.1°
Direction: South-South-East
Celestial coordinates and finder chart of 109 Herculis
109 Herculis is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 109 Herculis are provided in the following table:
The simplified sky map below shows the position of 109 Herculis in the sky:
Visibility of 109 Herculis from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London
Today's 109 Herculis rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
Distance of 109 Herculis from the Sun and relative movement
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.
Spectral properties of 109 Herculis
109 Herculis belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where 109 Herculis is situated in the Hertzsprung–Russell diagram.
109 Herculis 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: