HR6640

Below the horizon. Never rises today

Alt: -70.32° Az: 276.07° Direction: West

HR6640 is a giant star of spectral class G6 in the constellation of Ara.

HR6640 visual magnitude is 6.11. Because of its faintness, HR6640 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 HR6640. The red arrow shows the motion of HR6640 during the next 100000 years (15.00 arcmin in Right Ascension and -8.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 17h 53m 34s

Declination -45° 36’ 17”

Hour Angle 10h 05m 37s

Sideral Time 03h 59m 12s

J2000

Right Ascension 17h 51m 44s

Declination -45° 36’ 02”

Galactic Coordinates

Galactic Longitude 346.21°

Galactic Latitude -9.52°

Finder Chart

Simplified finder chart for HR6640.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.11

Class Giant

Absolute magnitude -0.49

Spectral Type G6III

Color Index (B-V) 0.95

Temperature 4866K

The red dot in the diagram below shows where HR6640 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6640. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR6640 is distant 682.01 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

Distance (parsec) 209.21

Distance (light year) 682.01

Radial Speed -7 km/s

Proper Motion RA 0.009 arcsec/y

Proper Motion Dec -0.005"/y

Alternative Designations

Henry Draper Catalogue HD162123

SAO Catalogue SAO228490

Hipparcos Catalogue HIP87404

Durchmusterung Catalogue CD-4511958

Visibility from Your Location

HR6640 is currently not visible from Greenwich, UK

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Ara