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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
wb_twilight Civil TwilightWhat's Visible Now?
All Constellations » Hercules » 

79 Herculis

Altitude: -11.8°   Azimuth: 339.5°   Direction: North-North-West

79 Herculis is a main-sequence star in the constellation of Hercules.

79 Herculis visual magnitude is 5.77. Because of its reltive faintness, 79 Herculis should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of 79 Herculis is -0.012 arcsec per year in Right Ascension and 0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 79 Herculis star
DSS2 image of 79 Herculis. The red arrow shows the motion of 79 Herculis during the next 10000 years (-2.00 arcmin in Right Ascension and 1.33 arcmin in declination);

Key facts about 79 Herculis


79 Herculis is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -11.8°
Azimuth: 339.5°
Direction: North-North-West

Celestial coordinates and finder chart of 79 Herculis

79 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 79 Herculis are provided in the following table:

17h 37m 31s
+24° 18’ 35”

The simplified sky map below shows the position of 79 Herculis in the sky:

Finder chart 79 Herculis star
Simplified finder chart for 79 Herculis.

Visibility of 79 Herculis from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's 79 Herculis rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 65.7°
Max altitude: 62.8°
Azimuth: 294.3°

Distance of 79 Herculis from the Sun and relative movement

79 Herculis is distant 239.88 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

73.58 pc
239.88 ly
-4 km/s
-0.012 arcsec/year
0.008 arcsec/year

Spectral properties of 79 Herculis

79 Herculis belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 79 Herculis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 79 Herculis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 79 Herculis

79 Herculis