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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
north SunriseRise: 7:50  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
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All Constellations » Canis Major » 

μ Canis Majoris (mu Canis Majoris)

Altitude: -13.0°   Azimuth: 96.4°   Direction: East

μ Canis Majoris is a multiple giant star in the constellation of Canis Major.

μ Canis Majoris visual magnitude is 5. Because of its moderate brightness, μ Canis Majoris should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about μ Canis Majoris:


μ Canis Majoris (mu Canis Majoris) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -13.0°
Azimuth: 96.4°
Direction: East

Celestial coordinates and finder chart of μ Canis Majoris

μ Canis Majoris is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of μ Canis Majoris are provided in the following table:

06h 56m 06s
-14° 02’ 36”
Canis Major

The simplified sky map below shows the position of μ Canis Majoris in the sky:

Finder chart μ Canis Majoris (mu Canis Majoris) star
Simplified finder chart for μ Canis Majoris (mu Canis Majoris).

Visibility of μ Canis Majoris from your location

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

Today's μ Canis Majoris (mu Canis Majoris) rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 104.0°
Max altitude: 24.5°
Azimuth: 256.0°

Digitized Sky Survey image of μ Canis Majoris

The image below is a photograph of μ Canis Majoris 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 μ Canis Majoris is -0.001 arcsec per year in Right Ascension and 0.005 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of μ Canis Majoris (mu Canis Majoris) star
DSS2 image of μ Canis Majoris. The red arrow shows the motion of μ Canis Majoris during the next 100000 years (-1.67 arcmin in Right Ascension and 8.33 arcmin in declination);

Distance of μ Canis Majoris from the Sun and relative movement

μ Canis Majoris is distant 908.08 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

278.55 pc
908.08 ly
19 km/s
-0.001 arcsec/year
0.005 arcsec/year

Spectral properties of μ Canis Majoris

μ Canis Majoris belongs to spectral class G5 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where μ Canis Majoris is situated in the Hertzsprung–Russell diagram.

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

μ Canis Majoris star system properties

μ Canis Majoris 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 μ Canis Majoris double sysyem:

2.8 arcsec

Alternative designations of μ Canis Majoris

μ Canis Majoris
(mu Canis Majoris)
18 Canis Majoris