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Constellation · CMi

Canis Minor

The Lesser Dog

A small constellation with Procyon, the eighth-brightest star in the night sky and one corner of the Winter Triangle.

Equatorial skyGenitive: Canis Minoris
Find Canis Minor in the sky map
Star chart of Canis Minor: its brightest stars joined by the traditional constellation figure inside the IAU boundary, north up and east to the left
Chart drawn from the Hipparcos catalogue (stars to magnitude 6). North is up, east is left. The dashed line is the official IAU boundary.
Brightest star
Procyon (Alpha Canis Minoris)

Magnitude 0.40

Best seen
February

Highest in the sky at 9 pm local time (winter in the northern hemisphere)

Whole constellation visible from
77°S to 90°N

Latitudes where every part of it rises above the horizon at some time of year

Approximate area
190 sq. degrees

The whole sky covers about 41,253 square degrees

Origin
One of Ptolemy's 48 ancient constellations (2nd century)
Catalogue stars
25

Stars brighter than about magnitude 6, the naked-eye limit under dark skies

Named stars in Canis Minor

Brightest first. A lower magnitude means a brighter star.

  • Procyon (Alpha Canis Minoris)mag 0.40
  • Gomeisa (Beta Canis Minoris)mag 2.89

Can you see Canis Minor from where you live?

This depends only on your latitude. Pick the row nearest to you; for your exact sky tonight, use the sky map.

LatitudeCanis Minor
60°NThe whole constellation rises and sets
40°NThe whole constellation rises and sets
20°NThe whole constellation rises and sets
the equatorThe whole constellation rises and sets
20°SThe whole constellation rises and sets
40°SThe whole constellation rises and sets
60°SThe whole constellation rises and sets

Questions about Canis Minor

When is Canis Minor best seen?

Canis Minor stands highest in the sky at 9 pm local time in February. That makes winter evenings the best time for observers in the northern hemisphere; in the southern hemisphere the season is reversed.

What is the brightest star in Canis Minor?

The brightest star in Canis Minor is Procyon (Alpha Canis Minoris), magnitude 0.40.

Where on Earth can you see Canis Minor?

The whole of Canis Minor can be seen from latitudes between about 77°S and 90°N. From 40°N: The whole constellation rises and sets. From 35°S: The whole constellation rises and sets.

What does Canis Minor mean?

Canis Minor is Latin for "the Lesser Dog". One of Ptolemy's 48 ancient constellations (2nd century).