28 Herculis

Below the horizon. Rise: 19:08 | Tran: 1:38 | Set: 8:03

Alt: -28.65° Az: 30.61° Direction: North-North-East

28 Herculis is a giant star of spectral class B9 in the constellation of Hercules.

28 Herculis visual magnitude is 5.63. Because of its faintness, 28 Herculis is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of 28 Herculis. The red arrow shows the motion of 28 Herculis during the next 10000 years (2.50 arcmin in Right Ascension and 0.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 16h 33m 50s

Declination +05° 28’ 07”

Hour Angle 13h 46m 42s

Sidereal Time 06h 20m 33s

J2000

Right Ascension 16h 32m 35s

Declination +05° 31’ 15”

Galactic Coordinates

Galactic Longitude 21.01°

Galactic Latitude 33.25°

Finder Chart

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Finder chart for 28 Herculis.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.63

Class Giant

Absolute magnitude 0.66

Spectral Type B9III

Color Index (B-V) -0.06

Temperature 10941K

The red dot in the diagram below shows where 28 Herculis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 28 Herculis. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

28 Herculis is distant 322.13 light years from the Sun and it is moving towards the Sun at the speed of 27 kilometers per second.

Distance (parsec) 98.81

Distance (light year) 322.13

Radial Speed -27 km/s

Proper Motion RA 0.015 arcsec/y

Proper Motion Dec 0.001"/y

Alternative Designations

Flamsteed designation 28 Herculis

Henry Draper Catalogue HD149121

SAO Catalogue SAO121676

Hipparcos Catalogue HIP81007

Durchmusterung Catalogue BD+05 3223

FK5 Catalogue 3309

Visibility from Your Location

Today's 28 Herculis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 84.5° RISE 19:08

Max altitude: 44.0° TRANSIT 1:38

Azimuth: 275.5° SET 8:03

Set Location

Other stars in Hercules