Universe 3.
Sun: a glowing ball of extremely dense gas powered by nuclear fusion in its core, but surrounded by a low-density, cooler atmosphere.Ītmosphere on Titan: a layer of cool, low-density gas confined close to the surface of Titan, one of Saturn's moons. Red Giant has released an update to Universe, its collection of GPU-accelerated plugins for editors and motion graphics artists. Planetary nebula: a glowing cloud of hot, low-density gas that is ejected from a red-giant star. Search across a wide variety of disciplines and sources: articles, theses, books, abstracts and court opinions. Read the following descriptions of astronomical objects, and then sort the labeled images into the appropriate bins according to the type of spectrum each object produces.Įmission nebula: a cloud of hot, interstellar gas glowing as a result of one or more nearby young stars that ionize the gas. Google Scholar provides a simple way to broadly search for scholarly literature. However, there are many astronomical objects that produce emission or absorption spectra. No astronomical object that produces a continuous visible spectrum of light has ever been observed. Note that a light bulb can be thought of as a hot, dense source of radiation. Match each diagram to the appropriate spectra. The following three diagrams illustrate the use of a simple spectroscope in a laboratory. The differences among the three types of spectra result from the various physical conditions in which the light is emitted, or through which it travels, before it is observed on Earth. The universe is filled with objects of extreme temperatures and densities, both high and low. Sort the images of the three types of spectra into the appropriate bins. Each is characterized by a different distribution of the wavelengths (i.e., colors) of radiation. There are three general types of spectra: continuous, emission, and absorption.
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