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“Perfect ” Thermal/Planck/Blackbody Radiation  Temperature “Perfect” Spectral Line Radiation  Material Composi

“Perfect ” Thermal/Planck/Blackbody Radiation  Temperature “Perfect” Spectral Line Radiation  Material Composition Q : How can we use Light to detect Motion …?. “ Doppler Shifts ”…for Sound. “ Doppler Shifts ”…for Light. Stellar Companions… “ Binary / ( Multiple ) Stars ”.

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“Perfect ” Thermal/Planck/Blackbody Radiation  Temperature “Perfect” Spectral Line Radiation  Material Composi

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  1. “Perfect” Thermal/Planck/Blackbody Radiation  Temperature “Perfect” Spectral Line Radiation  Material Composition Q: How can we use Light to detect Motion…?

  2. “Doppler Shifts”…for Sound

  3. “Doppler Shifts”…for Light

  4. Stellar Companions… “Binary / (Multiple) Stars” “Visual Binaries” (not mere “Optical Double Stars”) are very convenient… but what if you can’t separate them?

  5. A “Spectroscopic Binary” Star System

  6. Detecting Planets in Other Solar Systems… “Direct Imaging”…? (Possible but Very Difficult!)

  7. Q: How to detect dim “Extrasolar Planets” (“Exoplanets”)? A: Use Newton’s Third Law! (“Action-Reaction”… i.e., “Force-Counterforce”)

  8. Other Exoplanet Detection Methods (e.g., the Transit Method)

  9. (http://phl.upr.edu/projects/habitable-exoplanets-catalog)

  10. Detecting the “Molecules of Life” in Exoplanet Atmospheres…!

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