文档介绍：A Little
Astronomy
小小天文學
Hubble (哈伯)
The Hubble Space Telescope is a robotic telescope located on the outer edge of the atmosphere, in circular orbit around the Earth at 593 km above sea level, with an orbital period between 96 and 97 minutes at a speed 28,000 km / h. Named as a tribute to Edwin Hubble, was launched into orbit on 24 April 1990 as a joint project of NASA and ESA, thus inaugurating the Great Observatories program. Cylindrically shaped Hubble weighs 11 tons. Its length is m and its maximum diameter is meters. The telescope can obtain images with higher optical resolution seconds of arc.
The International Space Station (國際太空站)
View from inside the ship (由內往外觀)
Hubble
First we see the Galaxy Hat, also called M 104 in the Messier catalog, distance of about 28 million light-years it is considered the best photograph taken by Hubble
墨西哥帽銀河系
Now the famous nebula MZ3, called Fourmi, between 3000 and 6000 light years
Fourmi星雲
Third is the Eskimo Nebula NGC 2392 located 5000 light years
愛斯基摩星雲
Fourth, we can recognize the impressive Nebula Cat's Eye
貓眼星雲