Turn Your Smartphone into an Astronomy Toolbox with Mobile Apps | Space
Astrophotography: How to Determine Ideal Telescope Resolution and Image Sampling with AstronomyTools - YouTube
How the Telescope Field of View Affects Equipment and Object Selection — MAC OBSERVATORY
Telescopes and Observatories
Bintel Astronomy Setup Calculator - Bintel
Renée Graef Illustration - A merkhet, a time calculator, is one of the oldest astronomy tools (developed in Egypt around 600 B.C.). The illustration is from "T is for Time" by Marie