伽利略之夜木星英语版.pptVIP

Images: /catalog/PIA09361/images/content/329218main_juno200904.jpg * /Imagegallery/image.php?image_name=extrasolar2 * /Imagegallery/image.php?image_name=ssc2008-19a Images: /gallery/frequentImages.cfm * * Jupiter Ancient observations One of the brightest objects in the nights sky, Jupiter has been observed since ancient times and was connected to the religious beliefs and mythologies of many cultures. The Romans named Jupiter after the king of their gods. Jupiter appears like a bright star above the marbled streets of the ancient Greek city of Ephesus, located in modern day Turkey. Credit Copyright: Tun? Tezel (from The World at Night ) More photos like this one from The World At Night are available here: /newTWAN/index.asp It’s a planet! Like the four other planets that can be seen with the naked eye, Jupiter appears to move against the background stars from night to night. In fact, the word “planet” comes from the ancient Greek word for “wanderer.” Credit: Johan Meuris/Stellarium The planets appear to move slowly across the sky relative to the background of fixed stars. Galileo’s revolution of 1610 The Italian astronomer Galileo Galilei was the first person to point a telescope at Jupiter. Over several weeks in 1610, he was astonished to see what he called four “little stars” that appeared to orbit the planet. The discovery that an object other than Earth had satellites, or moons, was an amazing revelation. It proved that our world was not the centre of all motion in the Universe, and provided support for the view that Earth and the other planets orbited the Sun. Galileo’s notebook, with drawings of Jupiter and its moons. Additional links: Galileo timeline - /chron/galileo.html or Galileo’s notes - /galileo/ganymede/discovery.html or Details of Galileo’s discovery - /sci/observations/jupiter_satellites.html#2 A view of Jupiter and its four largest moons, similar to what Galileo saw in 1610. Credit: oceandesetoiles via F Other early observations As telesc