87 Herculis

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:

Color of 87 Herculis ⬤

Magnitude of 87 Herculis 5.12

Class Giant

VISIBILITY RIGHT NOW 87 Herculis is above the horizon from Greenwich, United Kingdom [change]. Altitude: 0°.

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:

Right Ascension J2000 17h 48m 49s

Declination J2000 +25° 37’ 22”

Galactic Longitude 50.44°

Galactic Latitude 24.44°

Constellation Hercules

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

Simplified finder chart for 87 Herculis.

Visibility of 87 Herculis from your location

Location: Greenwich, United Kingdom [change]
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 [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 64.4° RISE 21:57

Max altitude: 64.1° TRANSIT 6:27

Azimuth: 295.6° SET 14:52

RIGHT NOW 87 Herculis is above the horizon from Greenwich, United Kingdom

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.

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.

Distance (parsec) 62.74 pc

Distance (light year) 204.52 ly

Heliocentric radial velocity -26 km/s

Proper Motion RA -0.003 arcsec/year

Proper Motion Dec -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.

Absolute magnitude 1.13

Spectral Type K2III

Color Index (B-V) 1.16

Temperature of 87 Herculis 4389K

The red dot in the diagram below shows where 87 Herculis is situated in the Hertzsprung–Russell diagram.

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

Alternative designations of 87 Herculis

Flamsteed designation 87 Herculis

Henry Draper Catalogue HD162211

SAO Catalogue SAO85437

Hipparcos Catalogue HIP87194

Durchmusterung Catalogue BD+25 3353

FK5 Catalogue 3415

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In Evidence

Other stars in Hercules