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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
north SunriseRise: 7:45  
clear_day Transit: 11:48  
SunsetSet: 15:51 south
wb_twilight Civil TwilightWhat's Visible Now?
All Constellations » Hercules » 

61 Herculis

Altitude: 45.0°   Azimuth: 273.4°   Direction: West

61 Herculis is a variable giant star in the constellation of Hercules.

61 Herculis visual magnitude is 6.69. Because of its reltive faintness, 61 Herculis should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 61 Herculis:


61 Herculis is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 45.0°
Azimuth: 273.4°
Direction: West

Celestial coordinates and finder chart of 61 Herculis

61 Herculis is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 61 Herculis are provided in the following table:

17h 03m 30s
+35° 24’ 51”

The simplified sky map below shows the position of 61 Herculis in the sky:

Finder chart 61 Herculis star
Simplified finder chart for 61 Herculis.

Visibility of 61 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 61 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: 54.6°
Max altitude: 73.9°
Azimuth: 305.4°

Digitized Sky Survey image of 61 Herculis

The image below is a photograph of 61 Herculis from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of 61 Herculis is 0.033 arcsec per year in Right Ascension and -0.035 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 61 Herculis star
DSS2 image of 61 Herculis. The red arrow shows the motion of 61 Herculis during the next 10000 years (5.50 arcmin in Right Ascension and -5.83 arcmin in declination);

Distance of 61 Herculis from the Sun and relative movement

61 Herculis is distant 693.62 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.

212.77 pc
693.62 ly
-12 km/s
0.033 arcsec/year
-0.035 arcsec/year

Spectral properties of 61 Herculis

61 Herculis belongs to spectral class M4 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 61 Herculis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 61 Herculis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 61 Herculis

61 Herculis