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public LocationGreenwich, UK
Sunrise: 4:42 
Transit: 13:00 
Sunset: 21:18
sunny   (Daytime)   What's Visible Now?


Above the horizon.  Circumpolar today
Altitude: 33.0°   Azimuth: 24.5°   Direction: North-North-East

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.

Celestial coordinates and finder chart of HR4481

Finder chart HR4481 star
Simplified finder chart for HR4481.

HR4481 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4481 are provided in the following table:

11h 38m 49s
+64° 20’ 48”
Ursa Major
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);

Key facts about HR4481


and has a luminosity class of IV corresponding to a sub-giant star.


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

HR4481 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:

1.8 arcsec

Distance of HR4481 from the Sun and relative movement

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 pc
640.47 ly
-22 km/s
0.016 arcsec/year
0.006 arcsec/year

Alternative designations of HR4481


Visibility of HR4481 from your location

HR4481 is circumpolar and transits at 17:33 UTC (altitude: 77.1°)