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public LocationGreenwich, UK
Sunrise: 5:14 
Transit: 13:06 
Sunset: 20:58
sunny   (Daytime)   What's Visible Now?
All Constellations » Hercules » 

47 Herculis

Below the horizon.  Rise: 15:04 | Tran: 21:39 | Set: 4:17
Alt: -31.29°   Az: 2.01°   Direction: North

47 Herculis is a variable star of spectral class A3 in the constellation of Hercules.

47 Herculis visual magnitude is 5.49. Because of its faintness, 47 Herculis is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of 47 Herculis star
DSS2 image of 47 Herculis. The red arrow shows the motion of 47 Herculis during the next 10000 years (8.83 arcmin in Right Ascension and -1.83 arcmin in declination);

Celestial Coordinates


16h 51m 30s
+07° 12’ 25”
12h 06m 56s
04h 58m 27s


16h 50m 19s
+07° 14’ 52”

Galactic Coordinates


Finder Chart

Finder chart 47 Herculis star
Simplified finder chart for 47 Herculis.

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where 47 Herculis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 47 Herculis. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

47 Herculis is distant 188.44 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

-4 km/s
0.053 arcsec/y

Alternative Designations

47 Herculis

Visibility from Your Location

Today's 47 Herculis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 82.8°
Max altitude: 45.7°
Azimuth: 277.2°