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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: 7:40  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
sleep NighttimeWhat's Visible Now?
All Constellations » Canis Major » 

15 Canis Majoris

Altitude: 11.6°   Azimuth: 214.3°   Direction: South-West

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

15 Canis Majoris visual magnitude is 4.83. Because of its moderate brightness, 15 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 15 Canis Majoris:

4.83
Sub-giant

15 Canis Majoris is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 11.6°
Azimuth: 214.3°
Direction: South-West

Celestial coordinates and finder chart of 15 Canis Majoris

15 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 15 Canis Majoris are provided in the following table:

06h 53m 32s
-20° 13’ 27”
231.3°
-8.62°
Canis Major

The simplified sky map below shows the position of 15 Canis Majoris in the sky:

Finder chart 15 Canis Majoris star
Simplified finder chart for 15 Canis Majoris.

Visibility of 15 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 15 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: 110.2°
Max altitude: 18.3°
Azimuth: 249.8°

Digitized Sky Survey image of 15 Canis Majoris

The image below is a photograph of 15 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 15 Canis Majoris is -0.009 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of 15 Canis Majoris star
DSS2 image of 15 Canis Majoris. The red arrow shows the motion of 15 Canis Majoris during the next 100000 years (-15.00 arcmin in Right Ascension and 6.67 arcmin in declination);

Distance of 15 Canis Majoris from the Sun and relative movement

15 Canis Majoris is distant 1,613.86 light years from the Sun and it is moving far from the Sun at the speed of 28 kilometers per second.

495.05 pc
1,613.86 ly
28 km/s
-0.009 arcsec/year
0.004 arcsec/year

Spectral properties of 15 Canis Majoris

15 Canis Majoris belongs to spectral class B1 and has a luminosity class of IV corresponding to a sub-giant star.

-3.64
B1IV
13831K

The red dot in the diagram below shows where 15 Canis Majoris is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 15 Canis Majoris. Attribution: Richard Powell / CC BY-SA

Alternative designations of 15 Canis Majoris

15 Canis Majoris
SAO172520
SAO172520