54 Herculis

54 Herculis is a multiple giant star in the constellation of Hercules.

54 Herculis visual magnitude is 5.35. Because of its reltive faintness, 54 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 54 Herculis:

Color of 54 Herculis ⬤

Magnitude of 54 Herculis 5.35

Class Giant

VISIBILITY RIGHT NOW 54 Herculis is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of 54 Herculis

54 Herculis is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 54 Herculis are provided in the following table:

Right Ascension J2000 16h 55m 22s

Declination J2000 +18° 25’ 59”

Galactic Longitude 37.86°

Galactic Latitude 33.62°

Constellation Hercules

The simplified sky map below shows the position of 54 Herculis in the sky:

Simplified finder chart for 54 Herculis.

Visibility of 54 Herculis from your location

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

Today's 54 Herculis rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 71.6° RISE 21:25

Max altitude: 57.0° TRANSIT 5:05

Azimuth: 288.4° SET 12:41

RIGHT NOW 54 Herculis is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 54 Herculis

The image below is a photograph of 54 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 54 Herculis is -0.11 arcsec per year in Right Ascension and 0.014 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of 54 Herculis. The red arrow shows the motion of 54 Herculis during the next 1000 years (-1.83 arcmin in Right Ascension and 0.23 arcmin in declination);

Distance of 54 Herculis from the Sun and relative movement

54 Herculis is distant 354.73 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

Distance (parsec) 108.81 pc

Distance (light year) 354.73 ly

Heliocentric radial velocity 12 km/s

Proper Motion RA -0.11 arcsec/year

Proper Motion Dec 0.014 arcsec/year

Spectral properties of 54 Herculis

54 Herculis belongs to spectral class K4 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 0.17

Spectral Type K4III

Color Index (B-V) 1.41

Temperature of 54 Herculis 3934K

The red dot in the diagram below shows where 54 Herculis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 54 Herculis. Attribution: Richard Powell / CC BY-SA

54 Herculis star system properties

54 Herculis is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the 54 Herculis double sysyem:

Main star magnitude 5.35

Secondary star magnitude 9.55

Magnitude difference 4.2

Separation 2.5 arcsec

Alternative designations of 54 Herculis

Flamsteed designation 54 Herculis

Henry Draper Catalogue HD152879

SAO Catalogue SAO102476

Hipparcos Catalogue HIP82802

Durchmusterung Catalogue BD+18 3266

Aitken Double Star Catalogue ADS10262

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In Evidence

Other stars in Hercules