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NGC 1818: molodoe sharovoe skoplenie
<< Vchera 29.12.2002 Zavtra >>
NGC 1818: molodoe sharovoe skoplenie
Avtory i prava: Diedre Hunter (observatoriya Louell (Lowell)) i dr., HST, NASA
Poyasnenie: Nekogda sharovye skopleniya preobladali v galaktike Mlechnyi Put'. Kogda-to davnym-davno, kogda nasha Galaktika tol'ko obrazovalas', po nei skitalis' tysyachi sharovyh skoplenii. Segodnya ostalos' poryadka 200. Mnogie sharovye skopleniya byli razrusheny v rezul'tate rokovyh stolknovenii drug s drugom ili s galakticheskim centrom. Te, chto ostalis', starshe ostankov zemnyh iskopaemyh, starshe lyubyh drugih obrazovanii v nashei Galaktike. Po nim mozhno ocenivat' vozrast vselennoi. Molodyh sharovyh skoplenii v Galaktike Mlechnyi Put' malo (esli oni voobshe est'), t.k. net sootvetstvuyushih uslovii dlya ih obrazovaniya. Po-drugomu obstoit delo v sosednei galaktike LMC. Na risunke vy vidite "molodoe" sharovoe skoplenie v etoi galaktike: NGC 1818. Nablyudeniya pokazyvayut, chto ono sformirovalos' vsego lish' 40 millionov let nazad, prakticheski "vchera" po sravneniyu s 12 milliardami let, kotorye sostavlyayut vozrast sharovyh skoplenii v nashei sobstvennoi galaktike Mlechnyi Put'.

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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: NGC 1818 - globular cluster - Sharovoe skoplenie
Publikacii so slovami: NGC 1818 - globular cluster - Sharovoe skoplenie
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