ε Herculis (epsilon Herculis)

Above the horizon. Rise: 21:51 | Tran: 7:07 | Set: 16:19

Alt: 46.76° Az: 262.38° Direction: West

ε Herculis is a hypergiant star of spectral class A0 in the constellation of Hercules.

ε Herculis visual magnitude is 3.92. Because of its moderate brightness, ε Herculis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of ε Herculis (epsilon Herculis) star

DSS2 image of ε Herculis. The red arrow shows the motion of ε Herculis during the next 10000 years (-7.83 arcmin in Right Ascension and 4.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 17h 01m 15s

Declination +30° 53’ 26”

Hour Angle 03h 29m 12s

Sidereal Time 20h 30m 28s

J2000

Right Ascension 17h 00m 17s

Declination +30° 55’ 35”

Galactic Coordinates

Galactic Longitude 52.85°

Galactic Latitude 36.17°

Finder Chart

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Finder chart for ε Herculis (epsilon Herculis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.92

Class Hypergiant

Absolute magnitude 0.43

Spectral Type A0V

Color Index (B-V) -0.01

Temperature 10252K

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

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

Distance, Radial Speed, Proper Motion

ε Herculis is distant 162.67 light years from the Sun and it is moving towards the Sun at the speed of 25 kilometers per second.

Distance (parsec) 49.90

Distance (light year) 162.67

Radial Speed -25 km/s

Proper Motion RA -0.047 arcsec/y

Proper Motion Dec 0.028"/y

Alternative Designations

Bayer designation ε Herculis
(epsilon Herculis)

Flamsteed designation 58 Herculis

Henry Draper Catalogue HD153808

SAO Catalogue SAO65716

Hipparcos Catalogue HIP83207

Durchmusterung Catalogue BD+31 2947

FK5 Catalogue 634

Visibility from Your Location

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

Azimuth: 59.1° RISE 21:51

Max altitude: 69.4° TRANSIT 7:07

Azimuth: 300.9° SET 16:19

Set Location

Other stars in Hercules