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Constellation · Mus

Musca

The Fly

A small southern constellation just south of the Southern Cross.

Southern skyGenitive: Muscae
Find Musca in the sky map
Star chart of Musca: 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
Alpha Muscae

Magnitude 2.69

Best seen
May

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

Whole constellation visible from
90°S to 14°N

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

Approximate area
140 sq. degrees

The whole sky covers about 41,253 square degrees

Origin
Charted by Dutch navigators in the late 1500s
Catalogue stars
31

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

Can you see Musca 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.

LatitudeMusca
60°NNever rises
40°NNever rises
20°NOnly part of it ever clears the horizon
the equatorThe whole constellation rises and sets
20°SThe whole constellation rises and sets
40°SVisible all night, all year (it never sets)
60°SVisible all night, all year (it never sets)

Questions about Musca

When is Musca best seen?

Musca stands highest in the sky at 9 pm local time in May. That makes spring evenings the best time for observers in the northern hemisphere; in the southern hemisphere the season is reversed.

What is the brightest star in Musca?

The brightest star in Musca is Alpha Muscae, magnitude 2.69.

Where on Earth can you see Musca?

The whole of Musca can be seen from latitudes between about 90°S and 14°N. From 40°N: Never rises. From 35°S: Visible all night, all year (it never sets).

What does Musca mean?

Musca is Latin for "the Fly". Charted by Dutch navigators in the late 1500s.