How It All Started

My journey into astronomy and astrophotography began, like most modern adventures, with a lot of theory and an embarrassing number of YouTube videos. I quickly realised that while most of this content was super helpful and aimed at beginners, it often used terms that felt completely foreign to a total newbie like me.

So, instead of pretending I knew what arcsecond or bortle scale meant, I decided to actually learn them — one by one — and write them down in the simplest, most understandable way possible.

Below you’ll find my growing collection of astronomy terms explained for beginners. I’ll keep adding new ones as I discover them along the way in my ongoing astro journey.

Index

  • Focal Length
  • Focal Ratio f/number
  • Arcsecond
  • Arcsecond per pixel
  • Dithering
  • Astrograph

Bortle Scale