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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:08 
Transit: 12:13 
Sunset: 17:20
wb_twilight   (Astronomical Twilight)  
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All Constellations » Perseus » 

ω Persei (omega Persei)

Above the horizon.  Circumpolar today
Alt: 69.21°   Az: 245.22°   Direction: West-South-West

ω Persei is a double giant star of spectral class K1 in the constellation of Perseus.

ω Persei visual magnitude is 4.63. Because of its moderate brightness, ω Persei 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 ω Persei (omega Persei) star
DSS2 image of ω Persei. The red arrow shows the motion of ω Persei during the next 10000 years (-3.83 arcmin in Right Ascension and 0.83 arcmin in declination);

Celestial Coordinates

Apparent

03h 12m 55s
+39° 42’ 18”
01h 39m 01s
04h 51m 57s

J2000

03h 11m 17s
+39° 36’ 42”

Galactic Coordinates

150.23°
-15.73°

Finder Chart

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Finder chart for ω Persei (omega Persei).

Magnitude, Color, Spectral Class

4.63
Giant

-0.23
K1III
4493K

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

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

Star System Properties

ω Persei 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 ω Persei double sysyem:

4.63
10.73
6.1
177.4 arcsec

Distance, Radial Speed, Proper Motion

ω Persei is distant 304.96 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

93.55
304.96
7 km/s
-0.023 arcsec/y
0.005"/y

Alternative Designations

ω Persei
(omega Persei)
SAO56224
SAO56224

Visibility from Your Location

ω Persei (omega Persei) is circumpolar and transits at 17:17 UTC (altitude: 78.2°)