HR7966

Above the horizon. Circumpolar today

Alt: 61.59° Az: 275.27° Direction: West

HR7966 is a double giant star of spectral class K3 in the constellation of Cygnus.

HR7966 visual magnitude is 6.4. Because of its faintness, HR7966 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 HR7966. The red arrow shows the motion of HR7966 during the next 10000 years (0.83 arcmin in Right Ascension and -4.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 48m 11s

Declination +45° 40’ 18”

Hour Angle 02h 50m 45s

Sideral Time 23h 38m 57s

J2000

Right Ascension 20h 47m 20s

Declination +45° 34’ 46”

Galactic Coordinates

Galactic Longitude 85.16°

Galactic Latitude 1.37°

Finder Chart

Simplified finder chart for HR7966.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.4

Class Giant

Absolute magnitude -1.62

Spectral Type K3III

Color Index (B-V) 1.61

Temperature 3635K

The red dot in the diagram below shows where HR7966 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7966. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7966 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR7966 double sysyem:

Main star magnitude 6.4

Secondary star magnitude 12.7

Magnitude difference 6.3

Separation 12.9 arcsec

Distance, Radial Speed, Proper Motion

HR7966 is distant 1,309.24 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

Distance (parsec) 401.61

Distance (light year) 1,309.24

Radial Speed -6 km/s

Proper Motion RA 0.005 arcsec/y

Proper Motion Dec -0.025"/y

Alternative Designations

Henry Draper Catalogue HD198237

SAO Catalogue SAO50060

Hipparcos Catalogue HIP102585

Durchmusterung Catalogue BD+45 3275

Aitken Double Star Catalogue ADS14298

Visibility from Your Location

HR7966 is circumpolar and transits at 19:32 UTC (altitude: 84.2°)

Set Location

Other stars in Cygnus