WebStudy with Quizlet and memorize flashcards containing terms like Interstellar gas is composed of, Some regions along the plane of the Milky Way appear dark because, Due to absorption of shorter wavelengths by interstellar dust clouds, distant stars appear and more. WebJul 20, 2024 · A dark nebula is an interstellar cloud of cosmic dust that's so dense it absorbs, scatters and blocks visible light, making it appear inky black when viewed against the starry cosmos. Famous examples of a dark nebula include the Coalsack Nebula, the Horsehead Nebula and the Snake Nebula. Coalsack Dark Nebula by David Slack, …
Astronomy Ch 18 Quiz Q&As Flashcards Quizlet
WebBright nebulae occurs when close to a very hot bright star. Dark nebulae too far from a star to be illuminated emission & reflection Form new stars planetary Form when star dies Emission Nebulae - emit energy - fluorescent H gas - illuminated by hot young stars w/in - appear red Reflection Nebulae - reflect light from nearby stars WebA "fuzzy" dark or light patch in the sky is called a nebula. What do "forbidden" lines reveal about interstellar space? The density or pressure of this gas is much lower than can be produced in a laboratory. Why are dark dust clouds largely misnamed? They contain much more gas than dust. theo telemax.gr
ASTRONOMY CHAPTER 18 Flashcards Quizlet
WebFeb 18, 2024 · Dark nebulae appear as irregularly shaped black patches in the sky and blot out the light of the stars that lie beyond them. Bright nebulae appear as faintly luminous glowing surfaces; they either emit … WebIt dims and reddens the light of all more distant stars. Some regions along the plane of the Milky Way appear dark because: stars in that region are hidden by dark dust particles The spectra of interstellar gas clouds show that they have the same basic composition as: stars Hydrogen is the major gas in the interstellar medium. True Web32) Some regions along the plane of the Milky Way appear dark because A) there are no stars in these areas. B) stars in that region are hidden by interstellar gas. C) stars in that region are hidden by dark dust particles. D) many brown dwarfs in those areas absorb light, which they turn into heat. shubiaoches