HR8107

Above the horizon. Circumpolar today

Alt: 57.63° Az: 76.13° Direction: East-North-East

HR8107 is a multiple sub-giant star of spectral class B6 in the constellation of Cygnus.

HR8107 visual magnitude is 6.46. Because of its faintness, HR8107 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 HR8107. The red arrow shows the motion of HR8107 during the next 100000 years (6.67 arcmin in Right Ascension and -11.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 21h 11m 22s

Declination +47° 47’ 38”

Hour Angle 20h 37m 15s

Sidereal Time 17h 48m 37s

J2000

Right Ascension 21h 10m 31s

Declination +47° 41’ 30”

Galactic Coordinates

Galactic Longitude 89.36°

Galactic Latitude -0.25°

Finder Chart

Simplified finder chart for HR8107.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.46

Class Sub-giant

Absolute magnitude -1.86

Spectral Type B6IV

Color Index (B-V) -0.01

Temperature 10252K

The red dot in the diagram below shows where HR8107 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8107. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR8107 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR8107 double sysyem:

Main star magnitude 6.46

Secondary star magnitude 7.26

Magnitude difference 0.8

Separation 136.1 arcsec

Distance, Radial Speed, Proper Motion

HR8107 is distant 1,502.30 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

Distance (parsec) 460.83

Distance (light year) 1,502.30

Radial Speed -9 km/s

Proper Motion RA 0.004 arcsec/y

Proper Motion Dec -0.007"/y

Alternative Designations

Henry Draper Catalogue HD201836

SAO Catalogue SAO50536

Hipparcos Catalogue HIP104537

Durchmusterung Catalogue BD+47 3322

Aitken Double Star Catalogue ADS14720

Visibility from Your Location

HR8107 is circumpolar and transits at 19:39 UTC (altitude: 86.3°)

Set Location

Other stars in Cygnus