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所在平台: Udemy |
课程主页: https://www.udemy.com/course/stars-of-the-universe/
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课程名称:宇宙之星 课程概述:星星是宇宙的主要组成部分,占据了宇宙大部分的质量。它们的形状和大小各异,有些直径仅几公里,而有些则大到可以覆盖我们整个太阳系。不同的星星温度差异显著,有的比太阳热数百倍,有的则温度仅几千度。当星星开始耗尽燃料时,它们会经历剧烈的变化,如爆炸成超新星或崩溃为致密的白矮星或黑洞。 课程亮点包括以下额外课程: - 天文学基础 - 小课程:日食 - 小课程:流星雨 - 小课程:极光 - 阿尔忒弥斯计划:美国重返月球 主要内容如下: 1. 课程目标 2. 热身活动 3. 天空中的星星:数量及距离 4. 星星与整个宇宙的关系:范围与功能 5. 光度与亮度 6. 绝对亮度与视亮度 7. 亮度尺度 8. 主序星 9. T Tauri星 10. 红巨星 11. 蓝巨星 12. 白矮星 13. 中子星 14. 脉冲星 15. 红矮星与棕矮星,以及亚恒星物体 16. 核聚变 17. 星星的定义 18. 太阳:温度、特征、特性与大气 19. 星星的大小、质量与密度 20. 星星聚集与引力 21. 开放与封闭星团 22. 銀河星团与球状星团 23. 色散与光的范围 24. 光谱中的红移与蓝移 25. 多普勒效应 26. 可变星:脉动、内在、外在及激变星 27. 造父变星和距离计算 28. 多重星系统:双星与三重星 29. 轨道类型 30. 超新星:成因与结果 31. 黑洞 32. 测试题 33. 跨学科活动 本课程旨在深入了解星星的形成、特性及其在宇宙中的重要性,适合对天文学或宇宙科学感兴趣的学习者。
Stars are the workhorses of the universe and account for most of its mass. They come in many shapes and sizes, some as small as just a few miles across and others that are as large as much of our solar system. Some are hundreds of times hotter than the Sun and others are just a few thousand degrees. When stars start running out of fuel they do some crazy things like explode into supernovae or implode into tightly packed white dwarfs or black holes.This Course includes the following great BONUS LESSONS:What on Earth is Astronomy?Mini-Lesson: EclipsesMini-Lesson: Meteor ShowersMini-Lesson: AuroraProject Artemis: America Returns to the MoonStars and Star Clusters1. Objective2. Warm-up activity3. Stars in our sky: number and distance4. Stars as related to the entire Universe: scope and function5. Luminosity and magnitude6. Absolute magnitude and apparent magnitude7. Magnitude scale8. The main sequence of stars9. T Tauri stars10. Red giant stars11. Blue giant stars12. White dwarf stars13. Neutron stars14. Pulsars15. Red and brown dwarfs, and sub-stellar objects16. Nuclear fusion17. Definition of a star18. The Sun: temperature, features, characteristics and atmospheres19. Star size, mass and density20. Star clustering and gravity21. Open and closed star clusters22. Galactic and globular star clusters23. Prisms and the range of light24. Red and blue shifts in the spectrum25. The Doppler effect26. Variable stars: pulsating, intrinsic, extrinsic and cataclysmic27. Cepheid variable stars and distance calculations28. Multiple star systems: binary and trinary stars29. Types of orbits30. Supernovae: cause and effect31. Black holes32. Test questions33. Cross-curricular activities