銀星砂 :: 天文講座 :: 卡西尼土星之旅
Cassini Voyage to Saturn :: Lectures :: Astronomy @ Stardust Sand

[2007-01-13]

卡西尼土星之旅 Cassini Voyage to Saturn


Credit: NASA/JPL/SSI

空館「行星探索新世代」講座系列的第二講-卡西尼土星之旅,這是我相隔一年後再重新演譯這講題。在短短一年間,卡西尼由到達土星一年半變為兩年半,而且不斷有新發現,包括終於找到了土衛六泰坦上的甲烷湖泊,在土星的歷奇不斷有新發現。以下是講座簡介。

美國太空總署史上配備最精良的卡西尼探測船,以土星為目的地,1997年在反核抗議聲中發射升空,經過7年的旅程,2004年終於到達土星軌道。卡西尼配有 12台科學儀器,還載有闖入土衛六泰坦的登陸器惠更斯號。除了惠更斯號成功登陸泰坦外,卡西尼也利用透視眼終於在泰坦上發現科學家尋找多年的外星湖泊。此外,卡西尼目睹土衛二恩西拉達斯南極上冰火山的噴發;發現土衛七凱伯利安的奇怪地形,土衛八艾坡特斯上的赤道山脊,新衛星新光環等等。

This is the second lecture in the lecture series "New Era of Planetary Exploration", also it is the topic that I rephased again after a year since my first lecture of the topic. In only a year, Cassini has stayed in Saturn orbit from 1.5 years to 2.5 years. Cassini has ever new discoveries that always make us surprise, including the discoveries of methane lakes on Titan. Below is the outline of the lecture.

Cassini , the most advanced spacecraft ever built in NASA history. Target for Saturn, Cassini launched in 1997 under the protest against the use of nuclear engine, after 7 years of journey, finally reach the Saturn orbit in 2004. Equipped with 12 scientific instruments, as well as Huygens atmospheric probe which successfully landed on Titan. More, Cassini has used its infrared eyes and radar finally discovered the lost Titan lakes scientists are predicted for a long time. More, spotted geysers eruption on Enceladus, the strange outlook of Hyperion, the equatorial ridges of Iapetus, discovered new rings, new satellites etc.

[2006-02-20]

西尼任務,這個耗資260億港元的探測計劃由1982年開始籌備,是美國太空總署史上配備最精良的探測船。以土星為目的地,卡西尼號在1997年的反核抗議聲中發射升空,經過7年的旅程,2004年終於到達土星軌道。卡西尼配有12台科學儀器,而更重要的是卡西尼上還載有為闖入土衛六泰坦大氣層而設的登陸器惠更斯號。卡西尼會用最少4年時間,74次軌道接近觀測土星的大氣、環、磁層、衛星等。卡西尼根據推測由基勒縫中光環內觀測到波紋現象,從而發現了土衛三十五達佛尼斯;卡西尼發現泰坦上的冰火山,惠更斯號登陸泰坦時看到的河流渠道系統;土衛二恩西拉達斯上發現稀薄的大氣層,發現南極上間歇噴泉的噴發;土衛七凱伯利安上的奇怪地形;土衛八艾坡特斯上1300 km 的赤道山脊等等。

The HKD 26-billion Cassini mission began from 1982, it is the most advanced spacecraft ever built in NASA history. Target for Saturn, Cassini launched in 1997 under the protest against the use of nuclear engine, after 7 years of journey, finally reach the Saturn orbit in 2004. Equipped with 12 scientific instruments, as well as Huygens atmospheric probe which would land on Titan. Cassini will monitor the Saturian system, observe its ring, atmosphere, magnetosphere, moons with at least 4 years, 74 orbits. So far, Cassini has seen the wavy motion in the Keeler Gap which lead to the discovery of Daphnis. Cassini also discoveried the cryovolcano on Titan, the river channel system seen by Huygens during descending, the atmosphere and geysers of Enceladus, the strange outlook of Hyperion, the 1300km equatorial ridges of Iapetus.

Powerpoint::

v2.0 2007-01-11 117 MB 香港太空館「行星探索新世代」講座系列
v1.0 2006-02-02 15.3 MB 可觀自然教育中心暨天文館

Supplementary Material::

Saturn Orbit Insertion Flash Flash
Cassini Photo Essay Flash
惠更斯登陸泰坦過程 Movie (Version 2) 33.7 MB
惠更斯登陸泰坦地點環境 Movie 82.0 MB
Music2Titan - 01 Lalala MP3 4.72 MB
Orbital Phases Movie 10.7 MB
Cassini Halfway Photo Essay Flash

惠更斯登陸泰坦過程 Movie (Version 1) 81.1 MB
JPL 2005 Year In Images Flash 5.16 MB

Powerpoint snapshot from v2.0::

 

Recording Playback::

Further Readings::

卡西尼惠更斯官方網頁:
JPL http://saturn.jpl.nasa.gov
ESA http://saturn.esa.int
ISS http://ciclops.org
DISR http://www.lpl.arizona.edu/DISR
 
一般網頁:
JPL Photojournal http://photojournal.jpl.nasa.gov/
Saturn Daily http://www.saturndaily.com
MUSIC2TITAN http://music2titan.com
 
Ring World Podcast:
http://saturn.jpl.nasa.gov/multimedia/videos/video-details.cfm?videoID=114

 


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