1 Cassiopeiae

Above the horizon. Circumpolar today

Alt: 65.48° Az: 305.55° Direction: North-West

1 Cassiopeiae is a hypergiant star of spectral class B0 in the constellation of Cassiopeia.

1 Cassiopeiae visual magnitude is 4.85. Because of its moderate brightness, 1 Cassiopeiae is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of 1 Cassiopeiae. The red arrow shows the motion of 1 Cassiopeiae during the next 100000 years (15.00 arcmin in Right Ascension and 1.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 23h 07m 40s

Declination +59° 33’ 14”

Hour Angle 02h 47m 08s

Sideral Time 01h 54m 49s

J2000

Right Ascension 23h 06m 36s

Declination +59° 25’ 10”

Galactic Coordinates

Galactic Longitude 109.95°

Galactic Latitude -0.78°

Finder Chart

Simplified finder chart for 1 Cassiopeiae.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.85

Class Hypergiant

Absolute magnitude -2.80

Spectral Type B0IV

Color Index (B-V) -0.03

Temperature 10516K

The red dot in the diagram below shows where 1 Cassiopeiae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 1 Cassiopeiae. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

1 Cassiopeiae is distant 1,105.08 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

Distance (parsec) 338.98

Distance (light year) 1,105.08

Radial Speed -9 km/s

Proper Motion RA 0.009 arcsec/y

Proper Motion Dec 0.001"/y

Alternative Designations

Flamsteed designation 1 Cassiopeiae

Henry Draper Catalogue HD218376

SAO Catalogue SAO35147

Hipparcos Catalogue HIP114104

Durchmusterung Catalogue BD+58 2545

Visibility from Your Location

1 Cassiopeiae is circumpolar and transits at 21:55 UTC (altitude: 81.9°)

Set Location

Other stars in Cassiopeia