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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:05 
Transit: 12:56 
Sunset: 20:48
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All Constellations » Perseus » 

2 Persei

Above the horizon.  Circumpolar today
Alt: 14.34°   Az: 344.86°   Direction: North-North-West

2 Persei is a giant star of spectral class B9 in the constellation of Perseus.

2 Persei visual magnitude is 5.79. Because of its faintness, 2 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 2 Persei star
DSS2 image of 2 Persei. The red arrow shows the motion of 2 Persei during the next 10000 years (2.83 arcmin in Right Ascension and -4.33 arcmin in declination);

Celestial Coordinates

Apparent

01h 53m 47s
+50° 55’ 02”
10h 25m 20s
12h 19m 07s

J2000

01h 52m 09s
+50° 47’ 34”

Galactic Coordinates

132.64°
-10.93°

Finder Chart

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Finder chart for 2 Persei.

Magnitude, Color, Spectral Class

5.79
Giant
2 Persei is also a HgMn chemically peculiar star.

-0.10
B9III
11092K

The red dot in the diagram below shows where 2 Persei is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 2 Persei. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

2 Persei is distant 491.70 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

150.83
491.70
10 km/s
0.017 arcsec/y
-0.026"/y

Alternative Designations

SAO22696
SAO22696

Visibility from Your Location

2 Persei is circumpolar and transits at 10:08 UTC (altitude: 89.4°)