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Constellation · best in October evenings

Tucana

Genitive Tucanae · Tuc
Not above the horizon after darkNever rises from London
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Where is Tucana?

Times for LondonChange city

Below the horizon from London all the time.

Rises
Never
Highest
—
Sets
—
Best after dark
—

How to find Tucana

Start with Lang-Exster, Tucana’s brightest star (mag 2.8). Nearby constellations include Hydrus, Indus and Phoenix.

Its center is at right ascension 23h 49m, declination −65°. Use the chart above: north is up and east is to the left, as when you face south from the Northern Hemisphere.

Brightest star: Lang-Exster

Best time to see Tucana

Tucana is highest in the evening sky, around 10 pm, in October. A month or two either side it is still well placed, earlier or later in the night. All of it rises above the horizon from latitudes of about 13° N to 90° S.

Tucana never rises from London: it is too far south in the sky for this latitude.

This is position and timing only: clouds, haze and light pollution aren’t included.

Seeing Tucana

Eyes

Its stars are fairly faint (the brightest, Lang-Exster, is mag 2.8). You’ll need a sky away from bright lights to trace the pattern.

Binoculars

Binoculars show many more stars than your eye, and bring out star clusters and brighter nebulae inside it.

Telescope

The constellation is far too large for a telescope’s view. Use one for the clusters, nebulae and galaxies inside it.

What you’re likely to see, not what a space telescope photographs. General guidance from catalog brightness and size, not a forecast for tonight.

About

Tucana (genitive Tucanae, abbreviated Tuc) is one of the 88 constellations recognized by the International Astronomical Union, which together cover the whole sky. Its brightest star is Lang-Exster, magnitude 2.8.

SkyMate’s web catalog includes 1 named star in Tucana.

Brightest stars and objects in Tucana

Questions

What is the brightest star in Tucana?
Lang-Exster, at magnitude 2.8.
When is Tucana visible?
Tucana is highest in the evening sky, around 10 pm, in October. In the months either side it is still well placed, earlier or later in the night.
Can I see Tucana from where I live?
All of Tucana rises above the horizon from latitudes of about 13° N to 90° S. Outside that range, part or all of it stays below the horizon.