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На этой странице приведены все страницы, которые ссылаются на http://www.astronet.ru/db/xware/apod.html?page=71&d=2005-02. Показаны документы 1 - 1 из 1.
1. XWare > APOD
... Is this image worth a thousand words? ... This colorful telescopic view towards the northern constellation Lyra reveals dim outer regions around M57, popularly known as the Ring Nebula. While modern astronomers still refer to M57 as a planetary nebula, at one light-year across M57 is not a planet but the gaseous shroud of a dying sun-like star. ... NGC 7293: The Helix Nebula . ... The Helix Nebula is the closest example of a planetary nebula created at the end of the life of a Sun-like star. ...
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Ссылки http://www.astronet.ru/db/xware/apod.html?page=66&d=2005-02 -- 14.8 Кб -- 12.04.2016
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