Mirzam - β Canis Majoris (beta Canis Majoris)
Mirzam, also designated as β Canis Majoris (beta Canis Majoris), is a variable and double bright giant star in the constellation of Canis Major.
Mirzam visual magnitude is 1.98, making it the 47th brightest star in the sky. Thanks to its high brightness, Mirzam is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.
The table below summarizes the key facts about Mirzam:
Celestial coordinates and finder chart of Mirzam
Mirzam 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 Mirzam are provided in the following table:
The simplified sky map below shows the position of Mirzam in the sky:
Visibility of Mirzam from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's Mirzam - β Canis Majoris (beta Canis Majoris) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of Mirzam
The image below is a photograph of Mirzam 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 Mirzam is -0.006 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of Mirzam from the Sun and relative movement
Mirzam is distant 499.23 light years from the Sun and it is moving far from the Sun at the speed of 34 kilometers per second.
Spectral properties of Mirzam
Mirzam belongs to spectral class B1 and has a luminosity class of II corresponding to a bright giant star.
The red dot in the diagram below shows where Mirzam is situated in the Hertzsprung–Russell diagram.
Mirzam star system properties
Mirzam is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the Mirzam double sysyem: