Tucanul (constelație)

Tucanul

Harta constelației Tucanul (click pentru mărire)
Denumire
Nume latinTucana
GenitivTucanae
AbreviereTuc
Observație
(Epoca J2000.0)
Ascensie dreaptăÎntre 22h 08m 27s și 1h 24m 49s
DeclinațieÎntre −75° 20′ 50″ și −56° 18′ 46″
Suprafață295 grd² (Locul 48)
VizibilitateÎntre 15° N și 90° S
Trecere la meridian5 noiembrie, 21h00
Stele
Strălucitoare
(m≤3,0)
1 (α)
Vizibile cu ochiul liber45
Bayer / Flamsteed17
Apropiate
(d≤16 al)
0
Cea mai strălucitoareα Tuc (2,87m)
Cea mai apropiatăLHS 1208 (26,55 al)
Obiecte
Obiecte Messier0
Ploi de meteoriNiciuna
Constelații învecinateCocorul
Indianul
Octantul
Hidra Australă
Eridanul (colț)
Phoenix

Tucanul (lat. Tucana) este o constelație de pe cerul austral, numit după tucan, o pasăre din America de Sud. E una dintre cele douăsprezece constelații concepută în secolul al XVI-lea de către Petrus Plancius din observațiile lui Pieter Dirkszoon Keyser și Fredrerick de Houtman.


Descriere și localizare

Localizarea constelației

Vizibilitatea nocturnă a constelației Tucanul.

Tucanul este situat pe aliniamentul dintre Alpha Eridani (terminalul Eridanului) și steaua principală a Păunului, α Pav.

Istorie

Inventată de navigatorii neerlandezi Pieter Dirkszoon Keyser și Frederick de Houtman, la sfârșitul secolului al XVI-lea, această constelație a fost popularizată de Johann Bayer, odată cu publicarea lucrării sale Uranometria în 1603.

Mitologie

Această constelație conține Micul Nor al lui Magellan, o galaxie neregulată, satelit al Căii noastre Lactee.

Se găsesc și două roiuri globulare aproape de Micul Nor al lui Magellan, NGC 362 și NGC 104.

Bibliografie

  • Levy, David H. (). Deep Sky Objects. Prometheus Books. ISBN 1-59102-361-0. 

Legături externe

Commons
Commons
Wikimedia Commons conține materiale multimedia legate de Tucanul (constelație)

Coordonate: Harta cerului 00h 00m 00s, −65° 00′ 00″

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