Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
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All Constellations » Canes Venatici » 


HR5108 is a double hypergiant star in the constellation of Canes Venatici.

HR5108 visual magnitude is 6.37. Because of its reltive faintness, HR5108 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR5108:

HR5108 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 64°.

Celestial coordinates and finder chart of HR5108

HR5108 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 HR5108 are provided in the following table:

13h 34m 21s
+38° 47’ 21”
Canes Venatici

The simplified sky map below shows the position of HR5108 in the sky:

Finder chart HR5108 star
Simplified finder chart for HR5108.

Visibility of HR5108 from your location

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

HR5108 is circumpolar and transits at 21:13 UTC (altitude: 77.3°)

Digitized Sky Survey image of HR5108

The image below is a photograph of HR5108 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR5108 is 0.013 arcsec per year in Right Ascension and 0.024 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR5108 star
DSS2 image of HR5108. The red arrow shows the motion of HR5108 during the next 10000 years (2.17 arcmin in Right Ascension and 4.00 arcmin in declination);

Distance of HR5108 from the Sun and relative movement

HR5108 is distant 222.68 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.

68.31 pc
222.68 ly
-12 km/s
0.013 arcsec/year
0.024 arcsec/year

Spectral properties of HR5108

HR5108 belongs to spectral class F0 and has a luminosity class of IV corresponding to a hypergiant star.


The red dot in the diagram below shows where HR5108 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR5108. Attribution: Richard Powell / CC BY-SA

HR5108 star system properties

HR5108 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 HR5108 double sysyem:

30.6 arcsec

Alternative designations of HR5108