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三裂星云比礁湖星云稍微暗一些。 The Trifid is a little dimmer than the Lagoon. | ||
l还有一种星云叫反射星云,它们本身并不发光。 L Reflection nebulae have no light of their own. | ||
l猎户星座中的马头星云是最著名的暗星云。 L the Horsehead nebula in Orion is the best-known dark nebula. | ||
l天琴座中的环状星云是最著名的行星状星云。 L the Ring nebula in Lyra is the best-known of the planetary nebulae. | ||
从影像左方开始往右,分别可以找到潟湖星云、三裂星云、猫掌星云、烟斗星云以及色彩缤纷的心宿增四星和心宿二。 Starting on the left, look for the Lagoon and Trifid nebulae, the Cat's Paw, the Pipe dark nebula, and the colorful clouds of Rho Ophiuchi and Antares (right). | ||
这是蟹状星云。 And here you see the Crab Nebula. | ||
被称为马头星云,它在1500光年远,嵌在巨大的猎户星云复合体中。 Fittingly named the Horsehead Nebula, it is some 1, 500 light-years distant, embedded in the vast Orion cloud complex. | ||
星云九号后来发生了什么? What happened to the Cloud Nine? | ||
星云有梅西耶天体M8、M16、M20,还包括烟斗星云和毛掌星云。 Nebulas include Messier objects M8, M16, M20, as well as the Pipe and Cat's Paw nebulas. | ||
l有一种星云叫亮星云,它们发出暗淡的红光,这种红光是因为构成星云的氢气受到附近星体的射线激发而发出的光线。 L Glowing nebulae are named because they give off a dim, red light, as the hydrogen gas in them is heated by radiation from nearby stars. | ||