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Arcturus [Astro Entity]
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Užitečné informace pro astronomická pozorování.

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03

Témata pozorování
březen 2020

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astro:katalog:arcturus

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Arcturus

Arcturus nebo Artkur (α Boo, zkráceně: α Bootes)

  • nejjasnější hvězda souhvězdí Pastýře
  • čtvrtá nejjasnější hvězda noční oblohy
  • oranžový obr, vzdálenost 37 ly,-0,04mag, 4300K
  • první hvězda, u které byl pozorován vlastní pohyb hvězd (E. Halley v roce 1717)

Poznámky k demonstrování

  • Hvězdu lze snadno najít prodloužením oje Velkého vozu.
  • Když ve stejném směru pokračujeme v prodloužení, najdeme Spiku, nejjasnější hvězdu souhvězdí Panny.

Odkazy

Arcturus na Wikipedia.org


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astro/katalog/arcturus.txt · Last modified: 06.04.2017 18:31 by tokubi

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