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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 6:31 
Transit: 12:56 
Sunset: 19:19
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All Constellations » Perseus » 

11 Persei

Above the horizon.  Circumpolar today
Alt: 45.32°   Az: 307.23°   Direction: North-West

11 Persei is a giant star of spectral class B7 in the constellation of Perseus.

11 Persei visual magnitude is 5.77. Because of its faintness, 11 Persei is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of 11 Persei star
DSS2 image of 11 Persei. The red arrow shows the motion of 11 Persei during the next 10000 years (5.67 arcmin in Right Ascension and -4.50 arcmin in declination);

Celestial Coordinates

Apparent

02h 44m 49s
+55° 12’ 34”
05h 15m 32s
08h 00m 22s

J2000

02h 43m 02s
+55° 06’ 20”

Galactic Coordinates

138.51°
-4.35°

Finder Chart

Finder chart 11 Persei star
Simplified finder chart for 11 Persei.

Magnitude, Color, Spectral Class

5.77
Giant
11 Persei is also a Hg chemically peculiar star.

0.22
B7III
12103K

The red dot in the diagram below shows where 11 Persei is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 11 Persei. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

11 Persei is distant 420.10 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

128.87
420.10
-2 km/s
0.034 arcsec/y
-0.027"/y

Alternative Designations

SAO23555
SAO23555

Visibility from Your Location

11 Persei is circumpolar and transits at 03:18 UTC (altitude: 86.3°)