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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:06 
Transit: 12:56 
Sunset: 20:47
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All Constellations » Ursa Major » 

HR4481

Above the horizon.  Circumpolar today
Alt: 42.71°   Az: 323.88°   Direction: North-West

HR4481 is a double sub-giant star of spectral class A5 in the constellation of Ursa Major.

HR4481 visual magnitude is 6.46. Because of its faintness, HR4481 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 HR4481 star
DSS2 image of HR4481. The red arrow shows the motion of HR4481 during the next 10000 years (2.67 arcmin in Right Ascension and 1.00 arcmin in declination);

Celestial Coordinates

Apparent

11h 40m 13s
+64° 12’ 22”
06h 22m 06s
18h 02m 19s

J2000

11h 38m 49s
+64° 20’ 48”

Galactic Coordinates

135.31°
51°

Finder Chart

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Finder chart for HR4481.

Magnitude, Color, Spectral Class

6.46
Sub-giant

-0.01
A5IV
10125K

The red dot in the diagram below shows where HR4481 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4481. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4481 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR4481 double sysyem:

6.46
7.76
1.3
1.8 arcsec

Distance, Radial Speed, Proper Motion

HR4481 is distant 640.47 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

196.46
640.47
-22 km/s
0.016 arcsec/y
0.006"/y

Alternative Designations

SAO15580
SAO15580

Visibility from Your Location

HR4481 is circumpolar and transits at 19:57 UTC (altitude: 77.3°)