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public LocationGreenwich, United Kingdom
Sunrise: 4:42 
Transit: 12:59 
Sunset: 21:16
sunny   (Daytime)   What's Visible Now?


Above the horizon.  Circumpolar today
Altitude: 75.9°   Azimuth: 70.3°   Direction: East-North-East

HR4917 is a multiple star of spectral class A5 in the constellation of Ursa Major.

HR4917 visual magnitude is 5.82. Because of its faintness, HR4917 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 HR4917

Finder chart HR4917 star
Simplified finder chart for HR4917.

HR4917 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4917 are provided in the following table:

12h 56m 17s
+54° 05’ 57”
Ursa Major
Image of HR4917 star
DSS2 image of HR4917. The red arrow shows the motion of HR4917 during the next 10000 years (-12.83 arcmin in Right Ascension and 0.17 arcmin in declination);

Key facts about HR4917



The red dot in the diagram below shows where HR4917 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4917. Attribution: Richard Powell / CC BY-SA

HR4917 star system properties

HR4917 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR4917 double sysyem:

3.5 arcsec

Distance of HR4917 from the Sun and relative movement

HR4917 is distant 255.89 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

78.49 pc
255.89 ly
-5 km/s
-0.077 arcsec/year
0.001 arcsec/year

Alternative designations of HR4917


Visibility of HR4917 from your location

HR4917 is circumpolar and transits at 19:18 UTC (altitude: 87.4°)