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How much does your telescope’s aperture really matter? Is bigger always better? In this video, I explore what aperture is, why it’s important, and how it affects light-gathering power, limiting magnitude, and the ability to resolve fine detail. I’ll show real-world examples from my own astrophotography sessions with different telescopes and share free tools you can use to better understand your telescope’s capabilities. By the end, you’ll have a clear idea of whether investing in a larger aperture is worth it—or not. Clear skies! Wido Link to my blogpost about aperture with online calculators: https://astroforumspace.com/telescope... Join my channel as an astrocoffee supporter for $2.99 p/m: / @astroforumspace I'm producing FREE content about astrophotography and space. Any SUPPORT is greatly appreciated! You can support me as follows: 1) Donate (PayPal): https://bit.ly/3LTXhTS 2) SUBSCRIBE to my YouTube channel: / astroforumspace 3) Join the channel for $2.99 to buy me a monthly cup of coffee 4) Visit my website: https://astroforumspace.com/ 5) Buy some of my merchandise on my website: https://astroforumspace.com/shop/ 6) Use one of my affiliate links below to buy your Astrogear at your preferred shop. I get a small percentage to keep my YT channel and website going, and you pay the same price. Agena Astro (USA/WW): https://bit.ly/3N0fnaB High Point Scientific (USA/WW): https://bit.ly/45BccwW Astroshop (EU/WW): https://bit.ly/3ijbZVZ ZWO (WW): https://www.zwoastro.com/?ref=widooer... Vaonis (WW): https://vaonis.com/?rfsn=8043498.d4f478f Amazon (WW): https://amzn.to/3gGLWaK Any support you can give is highly appreciated, thanks! Follow me on: Website: https://www.astroforumspace.com/ Instagram: / widos_astroforum Facebook: / astroforum.space E-mail: [email protected] 0:00 Intro 0:55 What is Telescope aperture? 2:15 Light Gathering Power 4:21 Brightness Ratio 7:39 Limiting Magnitude 8:42 Limiting Magnitude for Astrophotography 11:23 Resolving Power (Rayleigh limit / Dawes limit) 15:47 Obstruction Loss 17:17 Practical tips: Is bigger always better? (price, weight, cost)