11: Stellar Properties Last updated Nov 20, 2024 Save as PDF 10.12: NASA’s Heliophysics Science Division 11.1: Module Introduction Page ID64061 Lumen LearningLumen Learning ( \newcommand{\kernel}{\mathrm{null}\,}\) 11.1: Module Introduction11.2: Variable Stars11.3: Cepheids11.4: Cataclysmic Variables11.5: Star Clusters11.6: Consider this…11.7: The Unknown in Astronomy11.8: Star and Celestial Object Characteristics11.9: Distances to the Stars and other Celestial Objects11.10: Stellar Distances11.11: Everything is Moving11.12: How Close are the Close-by Stars?11.13: Light-Years11.14: Parsec Vs. Light-Year Measurement11.15: Stellar and Celestial Object Brightness11.16: Magnitude System11.17: Celestial cartography11.18: Planispheres11.19: Star Colors11.20: Spectral Type11.21: Sample Spectral Types11.22: The Hertzsprung-Russell Diagram11.23: The Four Hertzsprung-Russell Diagram Stellar Groups11.24: Types of Star Systems and Stars