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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:22 
Transit: 12:46 
Sunset: 18:09
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All Constellations » Cassiopeia » 

σ Cassiopeiae (sigma Cassiopeiae)

Above the horizon.  Circumpolar today
Alt: 49.95°   Az: 55.14°   Direction: North-East

σ Cassiopeiae is a multiple main-sequence star of spectral class B1 in the constellation of Cassiopeia.

σ Cassiopeiae visual magnitude is 4.88. Because of its moderate brightness, σ 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 σ Cassiopeiae (sigma Cassiopeiae) star
DSS2 image of σ Cassiopeiae. The red arrow shows the motion of σ Cassiopeiae during the next 100000 years (15.00 arcmin in Right Ascension and -6.67 arcmin in declination);

Celestial Coordinates

Apparent

00h 00m 16s
+55° 53’ 34”
19h 18m 47s
19h 19m 03s

J2000

23h 59m 00s
+55° 45’ 18”

Galactic Coordinates

115.55°
-6.36°

Finder Chart

Finder chart σ Cassiopeiae (sigma Cassiopeiae) star
Simplified finder chart for σ Cassiopeiae (sigma Cassiopeiae).

Magnitude, Color, Spectral Class

4.88
Main-sequence

-3.47
B1V
11092K

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

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

Star System Properties

σ Cassiopeiae is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the σ Cassiopeiae double sysyem:

4.88
7.08
2.2
2.8 arcsec

Distance, Radial Speed, Proper Motion

σ Cassiopeiae is distant 1,523.36 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

467.29
1,523.36
-13 km/s
0.009 arcsec/y
-0.004"/y

Alternative Designations

σ Cassiopeiae
(sigma Cassiopeiae)
8 Cassiopeiae
SAO35947
SAO35947

Visibility from Your Location

σ Cassiopeiae (sigma Cassiopeiae) is circumpolar and transits at 22:28 UTC (altitude: 85.6°)