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Published byCody Allison Modified over 9 years ago
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ERAU Astronomical Observatory
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Meade 12.375 inch Schmidt Cassegrain Reflecting Telescope
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Ground Based Telescopes Optical Infrared Radio
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Refracting Telescope
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Refractors Tend to be long….
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Reflecting Telescope Designs
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Reflecting Telescopes are Compact….
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A Prism Spectrograph
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A Spectrum
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A Modern Spectrograph
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An Electronic Imaging Camera called a CCD
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Angular Resolution
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Angular Resolution depends on two things… 1. The wavelength of light : (in meters) 2. The size of the telescope mirror (or dish) : D (in meters) = 2.5 x 10 5 /D is the angular resolution in arcseconds
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A Radio telescope “dish”
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The Very Large Array (VLA) in New Mexico
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Atmospheric Blurring
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No atmospheric blurring in space….
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Spitzer Space Telescope
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Chandra X-Ray Observatory
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Compton Gamma-Ray Observatory
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The sky at five different wavelengths a- Visible b- Radio c - Infrared d - X-ray e - Gamma ray
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