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gospon profesor
marčelina
ludlud
sagittariusclassic

enciklopedija ekstrasolarnih planeta

galerija slika svemirskog teleskopa Hubble

zvjezdarnica

Veliki medvjed
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Orion
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Lav
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komet Hyakutake
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planetoid Matilda
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planetoid Eros
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Venera
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Mars
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Marsov satelit Fob
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Jupiter
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Jupiterov satelit Ija
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Jupiterov satelit Europa
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Jupiterov satelit Ganimed
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Saturn
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Plejade
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kuglasti skup M13
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tamna maglica Konjska glava
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tamna maglica Pilari
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planetarne maglice
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Andromeda
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spiralne galaktike
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Ekstrasolarni planet
21.12.2008., nedjelja
Erida

Erida je daleko svemirsko tijelo (perihel 38, afel 97 astronomskih jedinica) veće od Plutona (promjer 2600 km) otkriveno 2005. (M. E. Brown, C. A. Trujillo, D. L. Rabinowitz). Obiđe Sunce za 557 godina po izduženoj putanji koja je nagnuta na ekliptiku 44°. Poznato je da ima jedan satelit. Pošto je veća od Plutona jedno je vrijeme smatrana desetim planetom našeg Sunčeva sustava, ali je 2006. izgubila taj status skupa s Plutonom no uvedena je kategorija patuljasti planet. nono

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Fotografija Eride koju je snimio svemirski teleskop Hubble

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Umjetnički prikaz Eride, satelita i Sunca

- 14:27 - Komentari (3) - Print za slučaj nužde, inače čuvamo šume - #

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