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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:09 
Transit: 12:56 
Sunset: 20:44
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All Constellations » Cassiopeia » 

HR129

Above the horizon.  Circumpolar today
Alt: 32.95°   Az: 4.94°   Direction: North

HR129 is a hypergiant star of spectral class A0 in the constellation of Cassiopeia.

HR129 visual magnitude is 6.42. Because of its faintness, HR129 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 HR129 star
DSS2 image of HR129. The red arrow shows the motion of HR129 during the next 10000 years (4.67 arcmin in Right Ascension and -0.67 arcmin in declination);

Celestial Coordinates

Apparent

00h 34m 51s
+71° 07’ 16”
12h 51m 38s
13h 26m 30s

J2000

00h 33m 19s
+70° 58’ 54”

Galactic Coordinates

121.44°
8.16°

Finder Chart

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Finder chart for HR129.

Magnitude, Color, Spectral Class

6.42
Hypergiant

0.37
A0V
10252K

The red dot in the diagram below shows where HR129 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR129. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR129 is distant 527.51 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

161.81
527.51
-10 km/s
0.028 arcsec/y
-0.004"/y

Alternative Designations

SAO4142
SAO4142

Visibility from Your Location

HR129 is circumpolar and transits at 09:01 UTC (altitude: 70.4°)