HR181

Above the horizon. Circumpolar today

Alt: 34.61° Az: 36.54° Direction: North-East

HR181 is a giant star of spectral class B9 in the constellation of Cassiopeia.

HR181 visual magnitude is 6.17. Because of its faintness, HR181 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 HR181. The red arrow shows the motion of HR181 during the next 10000 years (6.00 arcmin in Right Ascension and -1.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 00h 43m 59s

Declination +58° 53’ 31”

Hour Angle 16h 46m 07s

Sidereal Time 17h 30m 06s

J2000

Right Ascension 00h 42m 31s

Declination +58° 45’ 11”

Galactic Coordinates

Galactic Longitude 121.77°

Galactic Latitude -4.1°

Finder Chart

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Finder chart for HR181.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.17

Class Giant

Absolute magnitude -1.30

Spectral Type B9III

Color Index (B-V) -0.01

Temperature 10252K

The red dot in the diagram below shows where HR181 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR181. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR181 is distant 1,015.58 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

Distance (parsec) 311.53

Distance (light year) 1,015.58

Radial Speed -3 km/s

Proper Motion RA 0.036 arcsec/y

Proper Motion Dec -0.007"/y

Alternative Designations

Henry Draper Catalogue HD3924

SAO Catalogue SAO21642

Hipparcos Catalogue HIP3334

Durchmusterung Catalogue BD+57 132

Visibility from Your Location

HR181 is circumpolar and transits at 09:22 UTC (altitude: 82.6°)

Set Location

Other stars in Cassiopeia