Poyasnenie: Sputnik Saturna Elena ves'ma neobychen: on dvizhetsya vokrug Saturna vblizi orbity bol'shego sputnika - Diony. Orbita Eleny prohodit blizhe k Saturnu na velichinu, ravnuyu 1/6 radiusa orbity Diony. Elena nahoditsya v tak nazyvaemoi "lagranzhevoi tochke" sistemy Diony i Saturna - ustoichivom meste, sozdannom ih gravitacionnymi polyami. Esli Elena chut'-chut' otklonitsya ot svoei orbity, gravitaciya Diony vernet ee obratno v lagranzhevu tochku. Takie ustoichivye lagranzhevy tochki sushestvuyut vo vseh dvoinyh sistemah, vklyuchaya Zemlyu i Lunu. Elena byla otkryta v 1980 godu P.Lakuesom i Dzh.Lekaheksom v rezul'tate nazemnyh nablyudenii. Fotografiya, kotoruyu Vy vidite, byla poluchena kosmicheskim apparatom "Voyadzher-2", kogda on proletal vblizi Saturna v 1981 godu. Agenstvo NASA planiruet zapusk k Saturnu korablya "Kassini" v oktyabre 1997 goda.

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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.

Publikacii s klyuchevymi slovami: sputniki Saturna - tochka Lagranzha Publikacii so slovami: sputniki Saturna - tochka Lagranzha
Sm. takzhe: Stereo-Elena Sputnik Saturna Elena v cvete Giperion: sputnik Saturna so strannymi kraterami Yapet: sputnik Saturna so strannoi poverhnost'yu Saturn, Tefiya, kol'ca i teni Sputniki Saturna za predelami ego kolec Raznocvetnyi sputnik Saturna Yapet: stereofotografiya Vse publikacii na tu zhe temu >>