is transparent erau astronomical observatory meade 12.375 inch schmidt cassegrain reflecting...
TRANSCRIPT
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ERAU Astronomical Observatory
Meade 12.375 inch Schmidt Cassegrain Reflecting Telescope
Ground Based Telescopes
Optical
Infrared
Radio
Refracting Telescope
Refractors Tend to be long….
Reflecting Telescope Designs
Reflecting Telescopes are Compact….
A Prism Spectrograph
A Spectrum
A Modern Spectrograph
An Electronic Imaging Camera called a CCD
Angular Resolution
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 105 /D
is the angular resolution in arcseconds
A Radio telescope “dish”
The Very Large Array (VLA) in New Mexico
Atmospheric Blurring
No atmospheric blurring in space….
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Spitzer Space Telescope
Chandra X-Ray Observatory
Compton Gamma-Ray Observatory
The sky at five different wavelengths
a- Visibleb- Radioc - Infraredd - X-raye - Gamma ray