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VIOLET

VIOLET. RED. VISIBLE LIGHT IN THE ATMOSPHERE SCATTERING : WAVELENGTH>>MOLECULE SIZE(MS) INTENSITY -> 1 / W )4 -> BLUE SKIES &REDDENING IN GENERAL SCATTERING =EXTINCTION FOR STARS WAVELENGTH ~MS (EG DUST) INTESITY ->1 / W WE MUST COMPENSATE FOR MEASURING STELLARENERGY

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VIOLET

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  1. VIOLET RED VISIBLE LIGHT IN THE ATMOSPHERE SCATTERING: WAVELENGTH>>MOLECULE SIZE(MS) INTENSITY -> 1 / W)4 -> BLUE SKIES &REDDENING IN GENERAL SCATTERING =EXTINCTION FOR STARS WAVELENGTH ~MS (EG DUST) INTESITY ->1 / W WE MUST COMPENSATE FOR MEASURING STELLARENERGY WAVELENGTH<< MS NO W DEPENDENCE( EG H2O = WHITE CLOUDS ATM REFRACTION: BENDS LIGHT EG NEAR HORIZON 35’ SUN IS PHYSICALLY SET WHEN SEEN TWINKLING- ANGULAR RESOLUTION LIMITED TO 1” IN GENERAL TO MAX 0.25” 2” BEST STATEN ISLAND meters UV <290nm Dissociate gases And ionize them e,.g.ozone absorbs 300 to 310 nm IR- 1 micrometer to 1 mm Excite and get absorbed by N2 O2 CO2 and Especially H2O Ionosphere acts like conducting Shield. .absorbs and reflects Incoming radio > 20 meters Visible Atmospheric Window Our eyes and Telescopes Radio Window 1mm to 20 m Radio Telescopes here

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