Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]

12 Canis Majoris

12 Canis Majoris is a variable giant star in the constellation of Canis Major.

12 Canis Majoris visual magnitude is 6.08. Because of its reltive faintness, 12 Canis Majoris 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 12 Canis Majoris:

6.08
Giant
12 Canis Majoris is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of 12 Canis Majoris

12 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 12 Canis Majoris are provided in the following table:

06h 47m 01s
-21° 00’ 56”
231.36°
-10.34°
Canis Major

The simplified sky map below shows the position of 12 Canis Majoris in the sky:

Finder chart 12 Canis Majoris star
Simplified finder chart for 12 Canis Majoris.

Visibility of 12 Canis Majoris from your location

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

Today's 12 Canis Majoris rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 111.0°
Max altitude: 17.5°
Azimuth: 249.0°
12 Canis Majoris is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 12 Canis Majoris

The image below is a photograph of 12 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 12 Canis Majoris is -0.014 arcsec per year in Right Ascension and 0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 12 Canis Majoris star
DSS2 image of 12 Canis Majoris. The red arrow shows the motion of 12 Canis Majoris during the next 10000 years (-2.33 arcmin in Right Ascension and 0.83 arcmin in declination);

Distance of 12 Canis Majoris from the Sun and relative movement

12 Canis Majoris is distant 668.03 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

204.92 pc
668.03 ly
15 km/s
-0.014 arcsec/year
0.005 arcsec/year

Spectral properties of 12 Canis Majoris

12 Canis Majoris belongs to spectral class B7 and has a luminosity class of III corresponding to a giant star.

-0.48
B7III
13348K

The red dot in the diagram below shows where 12 Canis Majoris is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 12 Canis Majoris. Attribution: Richard Powell / CC BY-SA

Alternative designations of 12 Canis Majoris

12 Canis Majoris
SAO172318
SAO172318