47 Cassiopeiae

Above the horizon. Circumpolar today

Alt: 39.15° Az: 356.32° Direction: North

47 Cassiopeiae is a double hypergiant star of spectral class F0 in the constellation of Cassiopeia.

47 Cassiopeiae visual magnitude is 5.38. Because of its faintness, 47 Cassiopeiae 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 47 Cassiopeiae. The red arrow shows the motion of 47 Cassiopeiae during the next 1000 years (2.08 arcmin in Right Ascension and -0.93 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 02h 07m 44s

Declination +77° 24’ 06”

Hour Angle 11h 07m 09s

Sidereal Time 13h 14m 54s

J2000

Right Ascension 02h 05m 07s

Declination +77° 16’ 53”

Galactic Coordinates

Galactic Longitude 127.06°

Galactic Latitude 15°

Finder Chart

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Finder chart for 47 Cassiopeiae.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.38

Class Hypergiant

Absolute magnitude 2.75

Spectral Type F0V

Color Index (B-V) 0.31

Temperature 7399K

The red dot in the diagram below shows where 47 Cassiopeiae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 47 Cassiopeiae. Attribution: Richard Powell / CC BY-SA

Star System Properties

47 Cassiopeiae 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 47 Cassiopeiae double sysyem:

Main star magnitude 5.38

Secondary star magnitude 11.38

Magnitude difference 6

Separation 95.6 arcsec

Distance, Radial Speed, Proper Motion

47 Cassiopeiae is distant 109.40 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

Distance (parsec) 33.56

Distance (light year) 109.40

Radial Speed -26 km/s

Proper Motion RA 0.125 arcsec/y

Proper Motion Dec -0.056"/y

Alternative Designations

Flamsteed designation 47 Cassiopeiae

Henry Draper Catalogue HD12230

SAO Catalogue SAO4562

Hipparcos Catalogue HIP9727

Durchmusterung Catalogue BD+76 63

FK5 Catalogue 2139

Visibility from Your Location

47 Cassiopeiae is circumpolar and transits at 10:10 UTC (altitude: 64.1°)

Set Location

Other stars in Cassiopeia