The Hertzsprung-Russell (H-R) Diagram
{"Image DocumentName": "The Hertzsprung-Russell (H-R) Diagram", "Image ImageDescription": "Original: Russell Sirius A. Absolute Magnitude scale of luminosity: M= log L/L\uf09d, so. L2=100L1 M2=M1-5. Modern, Local H-R diagram, 23,000 stars.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}