Canis Major, the Greater Dog (CMa)
The Southern constellation of Canis Major, the Greater Dog, is best viewed in Winter during the month of February. It's brightest star is Sirius at magnitude -1.46. The boundary of the Canis Major constellation contains 9 stars that host known exoplanets.
Sirius is the 7th closest star to Earth at 8.66 light years. Red hypergiant VY Canis Majoris is the 7th largest known star in the universe at 1,400 times the size of the Sun.
- CAN-iss MAY-jer
- Greater Dog
- Canis Majoris
- Constellation Family:
- Best viewing month*:
- Right Ascension (avg):
- 6h 50m
- Declination (avg):
- -22° 19'
- Brightest star:
- Sirius (-1.46)
- Stars with planets:
Brightest Stars in Canis Major
The 10 brightest stars in the constellation Canis Major by magnitude.
- Spectral class
- Alpha Canis Majoris (α Cma)
- Epsilon Canis Majoris (ε Cma)
- Delta Canis Majoris (δ Cma)
- Beta Canis Majoris (β Cma)
- Eta Canis Majoris (η Cma)
- Zeta Canis Majoris (ζ Cma)
- Omicron2 Canis Majoris (ο2 Cma)
- Sigma Canis Majoris (σ Cma)
- Kappa Canis Majoris (κ Cma)
- Omicron Canis Majoris (ο1 Cma)
Star Clusters in Canis Major
The most notable and easy-to-find star clusters in the constellation Canis Major . Also see all star clusters.
Nebulae in Canis Major
Notable and easy-to-find nebulae in the constellation Canis Major. Also see all nebulae.
Milky Way Satellites in Canis Major
Dwarf satellite galaxies that orbit the Milky Way Galaxy located in the constellation Canis Major. Also see all Milky Way satellite galaxies.
- Galaxy name
- Alt name
- Canis Major Dwarf
Exoplanets in Canis Major
These are the most notable named exoplanet systems known in the constellation Canis Major. Bear in mind that we will likely discover billions of exoplanets in the years to come. Also see all exoplanets.
* For southern latitudes, flip the season listed. For example, if a constellation is listed as best viewed in the summer in the month of July, in the southern hemisphere the constellation would be best viewed in the winter in January and would be upside-down.
** Circumpolar constellations are visible year-round in the hemisphere listed (and not at all in the opposite).