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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:04  
clear_day Transit: 12:47  
SunsetSet: 18:30 south
sunny DaytimeWhat's Visible Now
All Constellations » Canis Major » 

ω Canis Majoris (omega Canis Majoris)

Altitude: -6.6°   Azimuth: 234.4°   Direction: South-West

ω Canis Majoris is a variable sub-giant star in the constellation of Canis Major.

ω Canis Majoris visual magnitude is 3.85. Because of its moderate brightness, ω 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 ω Canis Majoris:


ω Canis Majoris (omega Canis Majoris) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -6.6°
Azimuth: 234.4°
Direction: South-West

Celestial coordinates and finder chart of ω Canis Majoris

ω 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 ω Canis Majoris are provided in the following table:

07h 14m 48s
-26° 46’ 22”
Canis Major

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

Finder chart ω Canis Majoris (omega Canis Majoris) star
Simplified finder chart for ω Canis Majoris (omega Canis Majoris).

Visibility of ω 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 ω Canis Majoris (omega 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: 116.8°
Max altitude: 11.7°
Azimuth: 243.2°

Digitized Sky Survey image of ω Canis Majoris

The image below is a photograph of ω 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 ω Canis Majoris is -0.008 arcsec per year in Right Ascension and 0.006 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of ω Canis Majoris (omega Canis Majoris) star
DSS2 image of ω Canis Majoris. The red arrow shows the motion of ω Canis Majoris during the next 100000 years (-13.33 arcmin in Right Ascension and 10.00 arcmin in declination);

Distance of ω Canis Majoris from the Sun and relative movement

ω Canis Majoris is distant 923.51 light years from the Sun and it is moving far from the Sun at the speed of 26 kilometers per second.

283.29 pc
923.51 ly
26 km/s
-0.008 arcsec/year
0.006 arcsec/year

Spectral properties of ω Canis Majoris

ω Canis Majoris belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.


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

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

Alternative designations of ω Canis Majoris

ω Canis Majoris
(omega Canis Majoris)
28 Canis Majoris