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Sirius - samaya yarkaya zvezda na nochnom nebe
<< Vchera 2.09.1996 Zavtra >>
Sirius - samaya yarkaya zvezda na nochnom nebe
Avtory i prava: Rentgenovskii sputnik ROSAT , Institut Maksa Planka vnezemnoi fiziki , agenstvo NASA , Virtual'naya observatoriya "Skaiv'yu"
Universitet Leisstera
Poyasnenie: Sirius - eto samaya yarkaya zvezda na nochnom nebe. Sirius v 20 raz yarche Solnca i v dva raza massivnee ego. Sirius nahoditsya na rasstoyanii 8.7 svetovyh let ot Zemli i ne yavlyaetsya blizhaishei zvezdoi. Samaya blizkaya eto zvezdnaya sistema al'fa Centavra . Sirius nazyvayut takzhe "Sobakoi", t.k. on nahoditsya v sozvezdii Bol'shoi Pes . V 1862 godu bylo otkryto, chto Sirius yavlyaetsya dvoinoi zvezdoi. Vokrug Siriusa A obrashaetsya sputnik, Sirius B , v 10000 raz menee yarkii. Sirius B byl pervym otkrytym belym karlikom. I tol'ko v 1930 godu Subrahman'yan Chandrasekar pervyi ponyal, kak ustroeny eti ob'ekty. V 1718 godu Edmond Gallei , izuchaya Sirius , otkryl sobstvennye dvizheniya zvezd. Na segodnyashnei kartinke sistema Siriusa pokazana v rentgenovskih luchah.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

English text
Po materialam Astronomy Picture Of the Day
Publikacii s klyuchevymi slovami: Sirius - star - Sirius - belyi karlik - rentgenovskie nablyudeniya
Publikacii so slovami: Sirius - star - Sirius - belyi karlik - rentgenovskie nablyudeniya
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