HR8808

Above the horizon. Circumpolar today

Alt: 62.51° Az: 45.08° Direction: North-East

HR8808 is a double main-sequence star of spectral class B3 in the constellation of Cepheus.

HR8808 visual magnitude is 6.26. Because of its faintness, HR8808 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 HR8808. The red arrow shows the motion of HR8808 during the next 100000 years (3.33 arcmin in Right Ascension and -6.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 23h 08m 50s

Declination +63° 46’ 18”

Hour Angle 20h 49m 11s

Sidereal Time 19h 58m 02s

J2000

Right Ascension 23h 07m 47s

Declination +63° 37’ 59”

Galactic Coordinates

Galactic Longitude 111.73°

Galactic Latitude 3.04°

Finder Chart

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Finder chart for HR8808.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.26

Class Main-sequence

Absolute magnitude -1.61

Spectral Type B3V

Color Index (B-V) -0.02

Temperature 10382K

The red dot in the diagram below shows where HR8808 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8808. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR8808 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 HR8808 double sysyem:

Main star magnitude 6.26

Secondary star magnitude 6.76

Magnitude difference 0.5

Separation 0.2 arcsec

Distance, Radial Speed, Proper Motion

HR8808 is distant 1,220.97 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.

Distance (parsec) 374.53

Distance (light year) 1,220.97

Radial Speed -19 km/s

Proper Motion RA 0.002 arcsec/y

Proper Motion Dec -0.004"/y

Alternative Designations

Henry Draper Catalogue HD218537

SAO Catalogue SAO20439

Hipparcos Catalogue HIP114212

Durchmusterung Catalogue BD+62 2171

Aitken Double Star Catalogue ADS16530

Visibility from Your Location

HR8808 is circumpolar and transits at 04:23 UTC (altitude: 77.7°)

Set Location

Other stars in Cepheus