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Constellation · Ret

Reticulum

The Reticle

A small diamond of stars named for the eyepiece grid (reticle) astronomers use to measure star positions.

Southern skyGenitive: Reticuli
Find Reticulum in the sky map
Star chart of Reticulum: 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 Reticuli

Magnitude 3.33

Best seen
January

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

Whole constellation visible from
90°S to 23°N

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

Approximate area
110 sq. degrees

The whole sky covers about 41,253 square degrees

Origin
Introduced by Nicolas-Louis de Lacaille in the 1750s
Catalogue stars
16

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

Can you see Reticulum 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.

LatitudeReticulum
60°NNever rises
40°NNever rises
20°NThe whole constellation rises and sets
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 Reticulum

When is Reticulum best seen?

Reticulum stands highest in the sky at 9 pm local time in January. 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 Reticulum?

The brightest star in Reticulum is Alpha Reticuli, magnitude 3.33.

Where on Earth can you see Reticulum?

The whole of Reticulum can be seen from latitudes between about 90°S and 23°N. From 40°N: Never rises. From 35°S: The whole constellation rises and sets.

What does Reticulum mean?

Reticulum is Latin for "the Reticle". Introduced by Nicolas-Louis de Lacaille in the 1750s.