Telescopes Courses
University of Arizona via Udemy 基礎光學 I (Introduction to Optics I)
National Taiwan University via Coursera AstroTech: The Science and Technology behind Astronomical Discovery
University of Edinburgh via Coursera Origens da Vida no Contexto Cósmico
Universidade de São Paulo via Coursera Introduction to Astronomy - Telescopes
YouTube Telescopes and spectrographs
The Open University via OpenLearn Basics of Astronomy
Study.com DSST Astronomy: Study Guide & Test Prep
Study.com Our Night Sky
The Great Courses Plus Understanding the Universe: An Introduction to Astronomy, 2nd Edition
The Great Courses Plus