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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:56 
Transit: 12:56 
Sunset: 20:58
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All Constellations » Perseus » 

57 Persei

Above the horizon.  Circumpolar today
Alt: 7.17°   Az: 18.56°   Direction: North-North-East

57 Persei is a multiple hypergiant star of spectral class F0 in the constellation of Perseus.

57 Persei visual magnitude is 6.09. Because of its faintness, 57 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 57 Persei star
DSS2 image of 57 Persei. The red arrow shows the motion of 57 Persei during the next 100000 years (6.67 arcmin in Right Ascension and 6.67 arcmin in declination);

Celestial Coordinates

Apparent

04h 35m 12s
+43° 06’ 55”
13h 42m 32s
18h 17m 44s

J2000

04h 33m 24s
+43° 03’ 50”

Galactic Coordinates

160.02°
-3.27°

Finder Chart

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Finder chart for 57 Persei.

Magnitude, Color, Spectral Class

6.09
Hypergiant

2.04
F0V
6989K

The red dot in the diagram below shows where 57 Persei is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 57 Persei. Attribution: Richard Powell / CC BY-SA

Star System Properties

57 Persei is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 57 Persei double sysyem:

6.09
6.79
0.7
116.2 arcsec

Distance, Radial Speed, Proper Motion

57 Persei is distant 210.59 light years from the Sun and it is moving towards the Sun at the speed of 23 kilometers per second.

64.60
210.59
-23 km/s
0.004 arcsec/y
0.004"/y

Alternative Designations

SAO39604
SAO39604

Visibility from Your Location

57 Persei is circumpolar and transits at 12:21 UTC (altitude: 81.6°)