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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:25 
Transit: 12:45 
Sunset: 18:04
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All Constellations » Auriga » 

HR2123

Above the horizon.  Circumpolar today
Alt: 13.24°   Az: 4.76°   Direction: North

HR2123 is a variable and multiple giant star of spectral class A7 in the constellation of Auriga.

HR2123 visual magnitude is 6.45. Because of its faintness, HR2123 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 HR2123 star
DSS2 image of HR2123. The red arrow shows the motion of HR2123 during the next 10000 years (0.83 arcmin in Right Ascension and -7.00 arcmin in declination);

Celestial Coordinates

Apparent

06h 06m 27s
+51° 34’ 12”
12h 29m 50s
18h 36m 17s

J2000

06h 04m 29s
+51° 34’ 23”

Galactic Coordinates

161.8°
14.17°

Finder Chart

Finder chart HR2123 star
Simplified finder chart for HR2123.

Magnitude, Color, Spectral Class

6.45
Giant

1.04
A7III
8321K

The red dot in the diagram below shows where HR2123 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR2123. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR2123 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR2123 double sysyem:

6.45
9.25
2.8
39 arcsec

Distance, Radial Speed, Proper Motion

HR2123 is distant 393.72 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.

120.77
393.72
20 km/s
0.005 arcsec/y
-0.042"/y

Alternative Designations

SAO25548
SAO25548

Visibility from Your Location

HR2123 is circumpolar and transits at 04:29 UTC (altitude: 89.9°)