HR6722

Altitude: 13.9° Azimuth: 83.1° Direction: East

HR6722 is a sub-giant star in the constellation of Hercules.

HR6722 visual magnitude is 6.26. Because of its reltive faintness, HR6722 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 HR6722:

Color of HR6722 ⬤

Magnitude of HR6722 6.26

Class Sub-giant

VISIBILITY RIGHT NOW

HR6722 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 13.9°
Azimuth: 83.1°
Direction: East

Celestial coordinates and finder chart of HR6722

HR6722 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 HR6722 are provided in the following table:

Right Ascension J2000 18h 00m 57s

Declination J2000 +15° 05’ 35”

Galactic Longitude 41.12°

Galactic Latitude 17.85°

Constellation Hercules

The simplified sky map below shows the position of HR6722 in the sky:

Simplified finder chart for HR6722.

Visibility of HR6722 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 HR6722 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: 74.9° RISE 11:03

Max altitude: 53.6° TRANSIT 18:20

Azimuth: 285.1° SET 1:40

Digitized Sky Survey image of HR6722

The image below is a photograph of HR6722 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 HR6722 is -0.059 arcsec per year in Right Ascension and -0.108 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR6722. The red arrow shows the motion of HR6722 during the next 1000 years (-0.98 arcmin in Right Ascension and -1.80 arcmin in declination);

Distance of HR6722 from the Sun and relative movement

HR6722 is distant 146.85 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

Distance (parsec) 45.05 pc

Distance (light year) 146.85 ly

Heliocentric radial velocity 4 km/s

Proper Motion RA -0.059 arcsec/year

Proper Motion Dec -0.108 arcsec/year

Spectral properties of HR6722

HR6722 belongs to spectral class G5 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude 2.99

Spectral Type G5IV

Color Index (B-V) 0.69

Temperature of HR6722 5636K

The red dot in the diagram below shows where HR6722 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6722. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6722

Henry Draper Catalogue HD164507

SAO Catalogue SAO103299

Hipparcos Catalogue HIP88217

Durchmusterung Catalogue BD+15 3327

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In Evidence

Other stars in Hercules