When is the best time to observe Alpha Tucanae?

Alpha Tucanae is best observed from July through September, with peak visibility during August when it transits around midnight in the Northern Hemisphere.

Where is Alpha Tucanae located in the sky?

Alpha Tucanae lies in the constellation Tucana at right ascension 22h 19m and declination -60° 16′.

What telescope do I need to see Alpha Tucanae?

At magnitude 2.9, Alpha Tucanae is visible to the naked eye from dark skies, easy in any binoculars.

Alpha Tucanae — Star in Tucana

Magnitude 2.9^m Star Tucana (Tuc) Visible

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About Alpha Tuc

Description

Alpha Tucanae is an orange giant of spectral type K3III at magnitude 2.86, the brightest star in Tucana (the Toucan). Located about 199 light-years from Earth, it has a luminosity of roughly 424 times solar. It is a spectroscopic binary with a period of about 11.5 years.

Observing Tips

Alpha Tuc lies in the far southern sky near the Small Magellanic Cloud (SMC). It is the brightest star in the faint constellation Tucana and serves as a guide to finding the SMC and the globular cluster 47 Tucanae. Best observed October through December from southern latitudes.

History

Tucana was created by Petrus Plancius from Dutch navigators' observations. Alpha Tucanae has no traditional proper name. The constellation is best known for containing 47 Tucanae, one of the finest globular clusters in the sky, and the Small Magellanic Cloud.

Fun Facts

Alpha Tuc's main claim to fame is its neighborhood — the spectacular globular cluster 47 Tucanae lies just 2.5 degrees to the west, and the Small Magellanic Cloud is nearby. These make the region around Alpha Tuc one of the richest areas for southern-hemisphere deep-sky observing.