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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 6:30 
Transit: 12:56 
Sunset: 19:21
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All Constellations » Camelopardalis » 

HR4639

Above the horizon.  Circumpolar today
Alt: 59.17°   Az: 353.90°   Direction: North

HR4639 is a double giant star of spectral class K5 in the constellation of Camelopardalis.

HR4639 visual magnitude is 6. Because of its faintness, HR4639 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 HR4639 star
DSS2 image of HR4639. The red arrow shows the motion of HR4639 during the next 10000 years (-4.83 arcmin in Right Ascension and 1.17 arcmin in declination);

Celestial Coordinates

Apparent

12h 12m 04s
+81° 34’ 21”
01h 27m 15s
13h 39m 20s

J2000

12h 10m 59s
+81° 42’ 35”

Galactic Coordinates

124.71°
35.28°

Finder Chart

Finder chart HR4639 star
Simplified finder chart for HR4639.

Magnitude, Color, Spectral Class

6
Giant

-1.64
K5
3622K

The red dot in the diagram below shows where HR4639 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4639. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4639 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR4639 double sysyem:

6
8
2
66.7 arcsec

Distance, Radial Speed, Proper Motion

HR4639 is distant 1,101.35 light years from the Sun and it is moving towards the Sun at the speed of 27 kilometers per second.

337.84
1,101.35
-27 km/s
-0.029 arcsec/y
0.007"/y

Alternative Designations

SAO1991
SAO1991

Visibility from Your Location

HR4639 is circumpolar and transits at 12:47 UTC (altitude: 59.9°)