"Version: 20251101"--Title page verso.Includes bibliographical references.1. A brief review of stellar structure and evolution -- 1.1. Internal stellar conditions -- 1.2. Stellar timescales -- 1.3. Equations of stellar structure -- 1.4. Radiation transfer and opacity -- 1.5. Convective transport -- 1.6. Calculating stellar models -- 1.7. Stellar evolution -- 1.8. Model comparisons2. An observat…