89 Herculis

89 Herculis is a variable supergiant star in the constellation of Hercules.

89 Herculis visual magnitude is 5.46. Because of its reltive faintness, 89 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 89 Herculis:

Color of 89 Herculis ⬤

Magnitude of 89 Herculis 5.46

Class Supergiant

VISIBILITY RIGHT NOW 89 Herculis is above the horizon from Greenwich, United Kingdom [change]. Altitude: 43°.

Celestial coordinates and finder chart of 89 Herculis

89 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 89 Herculis are provided in the following table:

Right Ascension J2000 17h 55m 25s

Declination J2000 +26° 03’ 00”

Galactic Longitude 51.43°

Galactic Latitude 23.19°

Constellation Hercules

The simplified sky map below shows the position of 89 Herculis in the sky:

Simplified finder chart for 89 Herculis.

Visibility of 89 Herculis from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's 89 Herculis rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 64.0° RISE 21:24

Max altitude: 64.6° TRANSIT 5:57

Azimuth: 296.1° SET 14:26

RIGHT NOW 89 Herculis is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 89 Herculis

The image below is a photograph of 89 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 89 Herculis is 0.004 arcsec per year in Right Ascension and 0.006 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of 89 Herculis. The red arrow shows the motion of 89 Herculis during the next 100000 years (6.67 arcmin in Right Ascension and 10.00 arcmin in declination);

Distance of 89 Herculis from the Sun and relative movement

89 Herculis is distant 3,196.08 light years from the Sun and it is moving towards the Sun at the speed of 29 kilometers per second.

Distance (parsec) 980.39 pc

Distance (light year) 3,196.08 ly

Heliocentric radial velocity -29 km/s

Proper Motion RA 0.004 arcsec/year

Proper Motion Dec 0.006 arcsec/year

Spectral properties of 89 Herculis

89 Herculis belongs to spectral class F2 and has a luminosity class of I corresponding to a supergiant star.

Absolute magnitude -4.50

Spectral Type F2I

Color Index (B-V) 0.34

Temperature of 89 Herculis 7217K

The red dot in the diagram below shows where 89 Herculis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 89 Herculis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 89 Herculis

Flamsteed designation 89 Herculis

Henry Draper Catalogue HD163506

SAO Catalogue SAO85545

Hipparcos Catalogue HIP87747

Durchmusterung Catalogue BD+26 3120

FK5 Catalogue 1468

General Catalogue of Variable Stars V441 Her

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In Evidence

Other stars in Hercules