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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:55 
Transit: 12:57 
Sunset: 20:59
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All Constellations » Cassiopeia » 

1 Cassiopeiae

Above the horizon.  Circumpolar today
Alt: 35.25°   Az: 36.17°   Direction: North-East

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.

Image of 1 Cassiopeiae star
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

23h 07m 41s
+59° 33’ 26”
16h 48m 06s
15h 55m 48s

J2000

23h 06m 36s
+59° 25’ 10”

Galactic Coordinates

109.95°
-0.78°

Finder Chart

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Finder chart for 1 Cassiopeiae.

Magnitude, Color, Spectral Class

4.85
Hypergiant

-2.80
B0IV
10516K

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

HR 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.

338.98
1,105.08
-9 km/s
0.009 arcsec/y
0.001"/y

Alternative Designations

1 Cassiopeiae
SAO35147
SAO35147

Visibility from Your Location

1 Cassiopeiae is circumpolar and transits at 06:51 UTC (altitude: 81.9°)