HR6611

HR6611 is a variable and double star in the constellation of Hercules.

HR6611 visual magnitude is 6.19. Because of its reltive faintness, HR6611 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 HR6611:

Color of HR6611 ⬤

Magnitude of HR6611 6.19

Class

VISIBILITY RIGHT NOW HR6611 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 45°.

Celestial coordinates and finder chart of HR6611

HR6611 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 HR6611 are provided in the following table:

Right Ascension J2000 17h 44m 17s

Declination J2000 +14° 24’ 37”

Galactic Longitude 38.72°

Galactic Latitude 21.25°

Constellation Hercules

The simplified sky map below shows the position of HR6611 in the sky:

Simplified finder chart for HR6611.

Visibility of HR6611 from your location

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

Today's HR6611 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 75.6° RISE 22:29

Max altitude: 52.9° TRANSIT 5:46

Azimuth: 284.4° SET 12:59

RIGHT NOW HR6611 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6611

The image below is a photograph of HR6611 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 HR6611 is 0.001 arcsec per year in Right Ascension and 0.018 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6611. The red arrow shows the motion of HR6611 during the next 10000 years (0.17 arcmin in Right Ascension and 3.00 arcmin in declination);

Distance of HR6611 from the Sun and relative movement

HR6611 is distant 470.42 light years from the Sun and it is moving towards the Sun at the speed of 31 kilometers per second.

Distance (parsec) 144.30 pc

Distance (light year) 470.42 ly

Heliocentric radial velocity -31 km/s

Proper Motion RA 0.001 arcsec/year

Proper Motion Dec 0.018 arcsec/year

Spectral properties of HR6611

HR6611 belongs to spectral class A3

Absolute magnitude 0.39

Spectral Type A3

Color Index (B-V) 0.21

Temperature of HR6611 8086K

The red dot in the diagram below shows where HR6611 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6611. Attribution: Richard Powell / CC BY-SA

HR6611 star system properties

HR6611 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR6611 double sysyem:

Main star magnitude 6.19

Secondary star magnitude 11.89

Magnitude difference 5.7

Separation 39.7 arcsec

Alternative designations of HR6611

Henry Draper Catalogue HD161321

SAO Catalogue SAO103069

Hipparcos Catalogue HIP86809

Durchmusterung Catalogue BD+14 3329

General Catalogue of Variable Stars V624 Her

Aitken Double Star Catalogue ADS10749

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In Evidence

Other stars in Hercules