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Constellation · Tel

Telescopium

The Telescope

A faint southern constellation south of Sagittarius.

Southern skyGenitive: Telescopii
Find Telescopium in the sky map
Star chart of Telescopium: 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 Telescopii

Magnitude 3.49

Best seen
August

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

Whole constellation visible from
90°S to 33°N

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

Approximate area
250 sq. degrees

The whole sky covers about 41,253 square degrees

Origin
Introduced by Nicolas-Louis de Lacaille in the 1750s
Catalogue stars
27

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

Can you see Telescopium 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.

LatitudeTelescopium
60°NNever rises
40°NOnly part of it ever clears the horizon
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°SVisible all night, all year (it never sets)

Questions about Telescopium

When is Telescopium best seen?

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

What is the brightest star in Telescopium?

The brightest star in Telescopium is Alpha Telescopii, magnitude 3.49.

Where on Earth can you see Telescopium?

The whole of Telescopium can be seen from latitudes between about 90°S and 33°N. From 40°N: Only part of it ever clears the horizon. From 35°S: The whole constellation rises and sets.

What does Telescopium mean?

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