9 Herculis

Altitude: -23.0° Azimuth: 313.4° Direction: North-West

9 Herculis is a giant star in the constellation of Hercules.

9 Herculis visual magnitude is 5.48. Because of its reltive faintness, 9 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 9 Herculis:

Color of 9 Herculis ⬤

Magnitude of 9 Herculis 5.48

Class Giant

VISIBILITY RIGHT NOW

9 Herculis is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -23.0°
Azimuth: 313.4°
Direction: North-West

Celestial coordinates and finder chart of 9 Herculis

9 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 9 Herculis are provided in the following table:

Right Ascension J2000 16h 13m 15s

Declination J2000 +05° 01’ 15”

Galactic Longitude 17.55°

Galactic Latitude 37.18°

Constellation Hercules

The simplified sky map below shows the position of 9 Herculis in the sky:

Simplified finder chart for 9 Herculis.

Visibility of 9 Herculis from your location

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

Today's 9 Herculis rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 85.0° RISE 5:01

Max altitude: 43.5° TRANSIT 11:25

Azimuth: 275.0° SET 17:48

Digitized Sky Survey image of 9 Herculis

The image below is a photograph of 9 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 9 Herculis is 0.04 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 9 Herculis. The red arrow shows the motion of 9 Herculis during the next 10000 years (6.67 arcmin in Right Ascension and -1.17 arcmin in declination);

Distance of 9 Herculis from the Sun and relative movement

9 Herculis is distant 424.48 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

Distance (parsec) 130.21 pc

Distance (light year) 424.48 ly

Heliocentric radial velocity -2 km/s

Proper Motion RA 0.04 arcsec/year

Proper Motion Dec -0.007 arcsec/year

Spectral properties of 9 Herculis

9 Herculis belongs to spectral class K5

Absolute magnitude -0.09

Spectral Type K5

Color Index (B-V) 1.47

Temperature of 9 Herculis 3839K

The red dot in the diagram below shows where 9 Herculis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 9 Herculis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 9 Herculis

Flamsteed designation 9 Herculis

Henry Draper Catalogue HD145892

SAO Catalogue SAO121431

Hipparcos Catalogue HIP79488

Durchmusterung Catalogue BD+05 3165

FK5 Catalogue 3283

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In Evidence

Other stars in Hercules