The Quest for Aperture Why Are Big Telescopes Better 20240707

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=HiJoqQp1qFI

We all know that bigger telescopes can produce sharper images and produce more signal, but do you know why? We’ll start with a look at optical resolution and how the atmosphere affects image sharpness. Then brace yourself for a little math as we go through the radiometry of imaging for both extended objects and point sources. The result will be a better understanding of how aperture, focal ratio and sensor size interact to produce the signal measured by your camera. In the end, we’ll look at some examples and you’ll leave with a better understanding of what large telescopes are good for and why they are so desirable. • Dr. John Hayes is a retired engineer, entrepreneur, and research professor with degrees in physics, astronomy, and optics from the University of Arizona. In his working life, John developed systems for testing optics, disk drive components, and many of the world’s largest telescope components including the JWST. He has authored over 30 professional papers, articles, book chapters, and presentations and he holds 14 patents in the fields of optics and atomic force microscopy. In retirement, John has returned to the hobby of astro-imaging. He currently operates a small, wide-field refractor and a 600mm telescope both located at Obstech in Chile. • John's AstroBin: https://www.astrobin.com/users/jhayes... • Download John's spreadsheet here: https://www.astrobin.com/forum/post/1... • 🔭 Subscribe to our channel for more astrophotography tutorials: https://bit.ly/TAIC-subscribe • 💫 What do you want to learn about? Suggest a topic for a future show: https://theastroimagingchannel.org/co... • Want more TAIC in your life? • ✨ Like us on Facebook: / theastroimagingchannel • ✨ Join our Facebook group: / 1329722943877857 • ✨ Visit our website: https://theastroimagingchannel.org/ • Found this helpful? Here are the best ways to support TAIC: • 🌟 Donate: https://tinyurl.com/Donate-to-TAIC • 🌟 Volunteer: https://theastroimagingchannel.org/co... • Who are we? • We’re a group of avid astrophotographers who meet online every week to discuss all aspects of astro imaging. From equipment to specialized scripts and everything in between, we connect you with others who are striving to capture and process better images. • We’re a volunteer-run non-profit, supported by viewers like you • #astrophotography #observatory #building

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