Telescope Resolution, FWHM, and HFR

Описание к видео Telescope Resolution, FWHM, and HFR

So what is "FWHM" (Full Width at Half Maximum) and "HFR" (Half-Flux Radius)? And how do they relate to our imaging camera sensor and focusing our telescopes? What is an "under-sampled" or "over-sampled" image? Does it matter? Watch this episode of "How I waste my time", next on YouTube...

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