銀星砂 :: 天文講座 :: 環世界
Planetary Rings :: Lectures :: Astronomy @ Stardust Sand

[2007-03-06]

環世界 Planetary Rings

在,在太陽系中已知木星、土星、天王星和海王星均擁有光環,然而,土星的光環是最為明顯和最為人熟悉的。由早年人們認為環是土星的「耳朵」,到今時今日透過探測船的觀測,我們清楚仔細地看到土星環中的無數細緻的結構。在土星的環世界中,衛星居住在環中與土星環起舞,衛星們不斷地製造新的光環。環,是由大至巴士小至微塵的物質組成,為何土星會擁有光環?究竟環上的世界是怎樣?不同行星的環又是怎樣?是次講座將為大家介紹現今天文學家對環的最新認識。

Now, we know that Jupiter, Saturn, Uranus and Neptune have known rings, but Saturn's Rings are still the most prominent and most knowledgeable for the public. From the early observations of Saturn to the recent space ages closeup flyby, our knowledge of planetary rings is getting improved. Especially, in Saturnian system, some satellites lived within the rings and played a celestial dance with the ringlets. These rings are composed of tiny pieces of particles sized from smoke to bus size. Why do the planets have ring? What are the views of these rings? What are the differences between the rings of planets? In this lecture, we will discuss the recent discoveries of the planetary rings.

Powerpoint::

v1.01 2007-02-23 58.2 MB 可觀自然教育中心暨天文館

Supplementary Material::

Voyager Arriving Saturn Movie 12.1 MB
Saturn Spoke Movie 22.0 MB
Saturn Ring Flash

Powerpoint snapshot::

 

Recording Playback::



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