is transparent ERAU Astronomical Observatory Meade 12.375 inch Schmidt Cassegrain Reflecting Telescope.

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Presentation transcript:

is transparent

ERAU Astronomical Observatory

Meade 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 10 5 /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- Visible b- Radio c - Infrared d - X-ray e - Gamma ray

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