Tucana: Wikis

  

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Tucana is also an alternate name for the Tucano language.
Tucana
Tucana
List of stars in Tucana
Abbreviation Tuc
Genitive Tucanae
Pronunciation /tjʊˈkeɪnə/, genitive /tjʊˈkeɪniː/
Symbolism the Toucan
Right ascension 0 h
Declination −65°
Family Bayer
Quadrant SQ1
Area 295 sq. deg. (48th)
Main stars 3
Bayer/Flamsteed
stars
17
Stars with
known planets
3
Stars brighter than 3m 1
Stars within 10 pc (32.6 ly) 2
Brightest star α Tuc (2.87m)
Nearest star LHS 1208
(26.55 ly, 8.14 pc)
Messier objects None
Bordering
constellations
Grus
Indus
Octans
Hydrus
Eridanus (corner)
Phoenix
Visible at latitudes between +25° and −90°.
Best visible at 21:00 (9 p.m.) during the month of November.

Tucana is a constellation in the southern sky, created in the sixteenth century. Its name is Latin for the toucan, a South American bird.

Contents

History

The constellation was one of twelve created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman and it first appeared on a 35-cm diameter celestial globe published in 1597 (or 1598) in Amsterdam by Plancius with Jodocus Hondius. The first depiction of this constellation in a celestial atlas was in Johann Bayer's Uranometria of 1603.

Notable features

Stars

Beta Tucanae is in fact a group of six stars which appear to be at least loosely bound into a system. The two brightest of these, Beta-1 Tucanae and Beta-2 Tucanae, are 27 arcseconds apart and have magnitudes of between 4 and 5. They are (probably) accompanied by a third star, Beta-3 Tucanae, which is further away, separated by 9 arcminutes from them.

Kappa Tucanae is a group of four stars: two binary stars.

Lambda Tucanae is an optical double - that is, the name is give to two stars which appear close together from our viewpoint, but are in fact far apart in space. The two stars are known as Lambda 1 and Lambda 2. Lambda 1 is itself a binary star, with two components.

Deep sky objects

At the southern end of Tucana lies the Small Magellanic Cloud. The globular cluster 47 Tucanae (NGC 104) is also located within its boundaries, as is the Tucana Dwarf galaxy, which was discovered in 1990. NGC 346 is also star forming region.

References

  • Ian Ridpath and Wil Tirion (2007). Stars and Planets Guide, Collins, London. ISBN 978-0007251209. Princeton University Press, Princeton. ISBN 978-0691135564.

External links

Coordinates: Sky map 00h 00m 00s, −65° 00′ 00″


Wiktionary

Up to date as of January 15, 2010

Definition from Wiktionary, a free dictionary

See also tucana

Contents

English

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Etymology

Named by Dutch explorers Pieter Dirkszoon Keyser and Frederick de Houtman between 1595 and 1597. From later Latin tucana, a "toucan".

Proper noun

Singular
Tucana

Plural
-

Tucana

  1. (astronomy) A spring constellation of the southern sky, said to resemble a toucan. It lies south of the constellations Phoenix and Grus.

Derived terms

Translations








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