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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:48  
clear_day Transit: 12:11  
SunsetSet: 17:34
sunny DaytimeWhat's Visible Now?
All Constellations » Canes Venatici » 


Altitude: 9.9°   Azimuth: 339.7°   Direction: North-North-West

HR4945 is a double giant star in the constellation of Canes Venatici.

HR4945 visual magnitude is 5.63. Because of its reltive faintness, HR4945 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR4945 is -0.012 arcsec per year in Right Ascension and 0.028 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4945 star
DSS2 image of HR4945. The red arrow shows the motion of HR4945 during the next 10000 years (-2.00 arcmin in Right Ascension and 4.67 arcmin in declination);

Key facts about HR4945


HR4945 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 9.9°
Azimuth: 339.7°
Direction: North-North-West

Celestial coordinates and finder chart of HR4945

HR4945 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 HR4945 are provided in the following table:

13h 05m 52s
+45° 16’ 06”
Canes Venatici

The simplified sky map below shows the position of HR4945 in the sky:

Finder chart HR4945 star
Simplified finder chart for HR4945.

Visibility of HR4945 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR4945 is circumpolar and transits at 02:36 UTC (altitude: 83.8°)

Distance of HR4945 from the Sun and relative movement

HR4945 is distant 482.96 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

148.15 pc
482.96 ly
-20 km/s
-0.012 arcsec/year
0.028 arcsec/year

Spectral properties of HR4945

HR4945 belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4945 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4945. Attribution: Richard Powell / CC BY-SA

HR4945 star system properties

HR4945 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 HR4945 double sysyem:

2.9 arcsec

Alternative designations of HR4945