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All Constellations » Cassiopeia » 

Schedar - α Cassiopeiae (alpha Cassiopeiae)

Above the horizon.  Circumpolar today
Alt: 36.03°   Az: 41.82°   Direction: North-East

Schedar, also designated as α Cassiopeiae (alpha Cassiopeiae), is a variable and multiple hypergiant star of spectral class K0 in the constellation of Cassiopeia.

Schedar visual magnitude is 2.23, making it the 68th brightest star in the sky. Because of its brightness, Schedar is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Image of Schedar - α Cassiopeiae (alpha Cassiopeiae) star
DSS2 image of Schedar. The red arrow shows the motion of Schedar during the next 10000 years (8.83 arcmin in Right Ascension and -5.33 arcmin in declination);

Celestial Coordinates

Apparent

00h 41m 55s
+56° 40’ 22”
17h 15m 52s
17h 57m 48s

J2000

00h 40m 30s
+56° 32’ 13”

Galactic Coordinates

121.42°
-6.3°

Finder Chart

Finder chart Schedar - α Cassiopeiae (alpha Cassiopeiae) star
Simplified finder chart for Schedar - α Cassiopeiae (alpha Cassiopeiae).

Magnitude, Color, Spectral Class

2.23
Hypergiant

-2.00
K0III
4368K

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

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

Star System Properties

Schedar 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 Schedar double sysyem:

2.23
8.93
6.7
64.4 arcsec

Distance, Radial Speed, Proper Motion

Schedar is distant 228.45 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

70.08
228.45
-4 km/s
0.053 arcsec/y
-0.032"/y

Alternative Designations

Schedar
α Cassiopeiae
(alpha Cassiopeiae)
18 Cassiopeiae
SAO21609
SAO21609

Visibility from Your Location

Schedar - α Cassiopeiae (alpha Cassiopeiae) is circumpolar and transits at 23:09 UTC (altitude: 84.8°)