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Download 8.8A describe components of the universe, including stars, nebulae
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8.8A describe components of the universe, including stars, nebulae, galaxies and use models such as HR diagrams for classification 8.8C explore how different wavelengths of the electromagnetic spectrum such as light and radio waves are used to gain information about distances and properties of the universe. The Electromagnetic Spectrum and the Universe X-Ray Ultraviolet Visible Infrared Radio Different wavelengths of the electromagnetic spectrum are used to gain information about the distances, movements and properties of components of the universe. Seeing Stars with X Ray vision! Infrared Rays and the Universe Spectral Analysis We can’t always get a sample of a piece of the Universe. So we depend on light ! Spectroscopy in Space Hydrogen The sun is in the middle of this diagram. It is used for comparison The horizontal axis shows the star’s surface temperature, the axis is reversed from the way you normally see it, it decreases from left to right
