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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:54  
clear_day Transit: 12:49  
SunsetSet: 18:43 south
sleep NighttimeWhat's Visible Now
All Constellations » Hercules » 

87 Herculis

Altitude: 14.6°   Azimuth: 293.0°   Direction: West-North-West

87 Herculis is a giant star in the constellation of Hercules.

87 Herculis visual magnitude is 5.12. Because of its reltive faintness, 87 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 87 Herculis:


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

Altitude: 14.6°
Azimuth: 293.0°
Direction: West-North-West

Celestial coordinates and finder chart of 87 Herculis

87 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 87 Herculis are provided in the following table:

17h 48m 49s
+25° 37’ 22”

The simplified sky map below shows the position of 87 Herculis in the sky:

Finder chart 87 Herculis star
Simplified finder chart for 87 Herculis.

Visibility of 87 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 87 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: 64.4°
Max altitude: 64.1°
Azimuth: 295.6°

Digitized Sky Survey image of 87 Herculis

The image below is a photograph of 87 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 87 Herculis is -0.003 arcsec per year in Right Ascension and -0.039 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 87 Herculis star
DSS2 image of 87 Herculis. The red arrow shows the motion of 87 Herculis during the next 10000 years (-0.50 arcmin in Right Ascension and -6.50 arcmin in declination);

Distance of 87 Herculis from the Sun and relative movement

87 Herculis is distant 204.52 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

62.74 pc
204.52 ly
-26 km/s
-0.003 arcsec/year
-0.039 arcsec/year

Spectral properties of 87 Herculis

87 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 87 Herculis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 87 Herculis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 87 Herculis

87 Herculis