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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:56 
Transit: 12:56 
Sunset: 20:58
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All Constellations » Hercules » 

μ Herculis (mu Herculis)

Above the horizon.  Rise: 17:49 | Tran: 2:35 | Set: 11:18
Alt: 41.53°   Az: 263.39°   Direction: West

μ Herculis is a multiple sub-giant star of spectral class G5 in the constellation of Hercules.

μ Herculis visual magnitude is 3.42. Because of its moderate brightness, μ 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.

Image of μ Herculis (mu Herculis) star
DSS2 image of μ Herculis. The red arrow shows the motion of μ Herculis during the next 1000 years (-5.18 arcmin in Right Ascension and -12.52 arcmin in declination);

Celestial Coordinates

Apparent

17h 47m 27s
+27° 42’ 45”
03h 48m 34s
21h 36m 02s

J2000

17h 46m 27s
+27° 43’ 14”

Galactic Coordinates

52.45°
25.63°

Finder Chart

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Finder chart for μ Herculis (mu Herculis).

Magnitude, Color, Spectral Class

3.42
Sub-giant

3.80
G5IV
5436K

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

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

Star System Properties

μ 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 μ Herculis double sysyem:

3.42
9.82
6.4
33.8 arcsec

Distance, Radial Speed, Proper Motion

μ Herculis is distant 27.38 light years from the Sun and it is moving towards the Sun at the speed of 16 kilometers per second.

8.40
27.38
-16 km/s
-0.311 arcsec/y
-0.751"/y

Alternative Designations

μ Herculis
(mu Herculis)
86 Herculis
SAO85397
SAO85397
Gl 695 A

Visibility from Your Location

Today's μ Herculis (mu Herculis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 62.3°
Max altitude: 66.2°
Azimuth: 297.7°