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public LocationGreenwich, UK
Sunrise: 4:43 
Transit: 13:01 
Sunset: 21:18
wb_twilight   (Astronomical Twilight)   What's Visible Now?
All Constellations » Canis Major » 

10 Canis Majoris

Below the horizon.  Rise: 10:49 | Tran: 13:31 | Set: 16:14
Altitude: -63.9°   Azimuth: 312.9°   Direction: North-West

10 Canis Majoris is a variable and double giant star of spectral class B2 in the constellation of Canis Major.

10 Canis Majoris visual magnitude is 5.2. Because of its faintness, 10 Canis Majoris 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 10 Canis Majoris

Finder chart 10 Canis Majoris star
Simplified finder chart for 10 Canis Majoris.

10 Canis Majoris is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 10 Canis Majoris are provided in the following table:

06h 44m 28s
-31° 04’ 14”
Canis Major
Image of 10 Canis Majoris star
DSS2 image of 10 Canis Majoris. The red arrow shows the motion of 10 Canis Majoris during the next 10000 years (-2.50 arcmin in Right Ascension and 1.33 arcmin in declination);

Key facts about 10 Canis Majoris


and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 10 Canis Majoris is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 10 Canis Majoris. Attribution: Richard Powell / CC BY-SA

10 Canis Majoris star system properties

10 Canis Majoris 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 10 Canis Majoris double sysyem:

36.3 arcsec

Distance of 10 Canis Majoris from the Sun and relative movement

10 Canis Majoris is distant 2,608.00 light years from the Sun and it is moving far from the Sun at the speed of 34 kilometers per second.

800.00 pc
2,608.00 ly
34 km/s
-0.015 arcsec/year
0.008 arcsec/year

Alternative designations of 10 Canis Majoris

10 Canis Majoris

Visibility of 10 Canis Majoris from your location

Today's 10 Canis Majoris rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 121.1°
Max altitude: 7.4°
Azimuth: 238.9°