Avtory i prava: Gruppa naslediya kosmicheskogo teleskopa im.Habbla,
(AURA /
STScI),
R.G. French
(Kolledzh Wellesley),
J. Cuzzi (NASA/Ames),
L. Dones (SwRI),
J. Lissauer (NASA/Ames)
Perevod: N.A.Lipunova
Poyasnenie:
Galileo Galilei, rodivshiisya v 1564
godu, ispol'zoval teleskop dlya issledovaniya Solnechnoi sistemy.
V 1610 godu imenno on stal
pervym
chelovekom, uvidevshim kol'ca Saturna.
I teper', spustya pochti 400 let,
velikolepnye kol'ca Saturna ne perestayut
voshishat' lyubitelei astronomii.
Po sravneniyu s kol'cami drugih
gazovyh
planet-gigantov, sistema kolec Saturna
chrezvychaino yarkaya.
Obshaya shirina kolec - 250 tysyach
km, a tolshina v nekotoryh mestah ne prevyshaet
neskol'kih desyatkov metrov.
Sovremennye astronomy polagayut, chto
vozrast
kolec
sostavlyaet vsego lish' sto millionov let.
V rezul'tate nabora pyli i dinamicheskogo vzaimodeistviya so
sputnikami Saturna proizoidet potemnenie kolec i
postepennoe "prosedanie" ih v storonu planety-giganta. V techenie
sleduyushih neskol'kih soten millionov let oni mogut poteryat' svoi
blesk.
So vremen Galileya astronomy pytalis' ponyat' tainu etih
kolec.
Sovershaya
svoi 29-letnii oborot vokrug Solnca, Saturn nahodilsya
31 dekabrya 2003 goda
v blizhaishei
k Zemle tochke - na rasstoyanii
1 milliard 200 millionov kilometrov.
V blizhaishie
mesyacy budut prodolzhat'sya intensivnye nablyudeniya
planety s pomosh'yu
nazemnyh
teleskopov.
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NASA Official: Jay Norris. Specific rights apply.
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Publikacii s klyuchevymi slovami:
Saturn - rings - Galileo Galilei - Saturn - kol'ca - Galileo Galilei
Publikacii so slovami: Saturn - rings - Galileo Galilei - Saturn - kol'ca - Galileo Galilei | |
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