Color-Magnitude Diagram (CMD) – Definition & Detailed Explanation – Astronomical Units & Measurements Glossary

I. What is a Color-Magnitude Diagram (CMD)? A Color-Magnitude Diagram (CMD) is a graphical representation used in astronomy to display the relationship between the color and brightness of stars in a particular region of the sky. The vertical axis of a CMD represents the magnitude or brightness of stars, while the horizontal axis represents the … Read more