We use cookies to deliver essential features and to measure their performance. Learn more.
We're free & ads-free thanks to your support
public LocationGreenwich, UK
Sunrise: 4:57 
Transit: 13:04 
Sunset: 21:10
sunny   (Daytime)   What's Visible Now?
All Constellations » Ursa Major » 


Above the horizon.  Circumpolar today
Altitude: 53.8°   Azimuth: 325.4°   Direction: North-West

HR4181 is a giant star of spectral class K3 in the constellation of Ursa Major.

HR4181 visual magnitude is 5. Because of its moderate brightness, HR4181 is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

HR4181 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere.

Image of HR4181 star
DSS2 image of HR4181. The red arrow shows the motion of HR4181 during the next 10000 years (0.33 arcmin in Right Ascension and -2.00 arcmin in declination);

Apparent Coordinates

10h 44m 47s
+68° 56’ 49”

J2000 Coordinates

10h 43m 04s
+69° 04’ 33”

Galactic Coordinates


Finder Chart

Finder chart HR4181 star
Simplified finder chart for HR4181.

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where HR4181 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4181. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR4181 is distant 426.14 light years from the Sun

130.72 pc
426.14 ly
0.002 arcsec/y
-0.012 "/y

Alternative Designations


Visibility from Your Location

HR4181 is circumpolar and transits at 15:19 UTC (altitude: 72.4°)