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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 » 

HR654

Above the horizon.  Circumpolar today
Alt: 65.98°   Az: 60.29°   Direction: East-North-East

HR654 is a variable and double supergiant star of spectral class B1 in the constellation of Perseus.

HR654 visual magnitude is 6.48. Because of its faintness, HR654 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 HR654 star
DSS2 image of HR654. The red arrow shows the motion of HR654 during the next 100000 years (1.67 arcmin in Right Ascension and -3.33 arcmin in declination);

Celestial Coordinates

Apparent

02h 18m 39s
+57° 10’ 18”
21h 17m 12s
23h 35m 52s

J2000

02h 16m 51s
+57° 03’ 19”

Galactic Coordinates

134.38°
-3.91°

Finder Chart

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Finder chart for HR654.

Magnitude, Color, Spectral Class

6.48
Supergiant

-2.84
B1I
7591K

The red dot in the diagram below shows where HR654 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR654. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR654 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR654 double sysyem:

6.48
7.38
0.9
103 arcsec

Distance, Radial Speed, Proper Motion

HR654 is distant 2,379.56 light years from the Sun and it is moving towards the Sun at the speed of 42 kilometers per second.

729.93
2,379.56
-42 km/s
0.001 arcsec/y
-0.002"/y

Alternative Designations

SAO23115
SAO23115

Visibility from Your Location

HR654 is circumpolar and transits at 10:33 UTC (altitude: 84.3°)