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public  Vallo della Lucania, Italy Vallo della Lucania, Italy  ⓘ
TimezoneEurope/Rome
Sunrise: 5:41 
Transit: 13:04 
Sunset: 20:27
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All Constellations » Perseus » 

7 Persei

Above the horizon.  Circumpolar today
Alt: 20.16°   Az: 330.22°   Direction: North-North-West

7 Persei is a multiple giant star of spectral class G7 in the constellation of Perseus.

7 Persei visual magnitude is 5.98. Because of its faintness, 7 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 7 Persei star
DSS2 image of 7 Persei. The red arrow shows the motion of 7 Persei during the next 10000 years (-3.17 arcmin in Right Ascension and 1.00 arcmin in declination);

Celestial Coordinates

Apparent

02h 19m 53s
+57° 38’ 00”
07h 57m 41s
10h 17m 34s

J2000

02h 18m 04s
+57° 31’ 00”

Galactic Coordinates

134.39°
-3.42°

Finder Chart

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Finder chart for 7 Persei.

Magnitude, Color, Spectral Class

5.98
Giant

-0.71
G7III
4626K

The red dot in the diagram below shows where 7 Persei is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 7 Persei. Attribution: Richard Powell / CC BY-SA

Star System Properties

7 Persei is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 7 Persei double sysyem:

5.98
8.58
2.6
121.9 arcsec

Distance, Radial Speed, Proper Motion

7 Persei is distant 710.24 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.

217.86
710.24
-11 km/s
-0.019 arcsec/y
0.006"/y

Alternative Designations

SAO23149
SAO23149

Visibility from Your Location

7 Persei is circumpolar and transits at 05:57 UTC (altitude: 72.6°)