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This is a screenshot of the Sun. Credit: Runar Thorvaldsen and Nikolang.

The objective is to provide students with a dynamic course focused on the Sun. At the end of the course, a student should have a well-rounded knowledge of the radiation, and observational and theoretical astronomy of the Sun.

The course is built upon the ongoing research performed by astronomers around the world and in the not so empty space above the Earth's atmosphere.

The course material is layered from a secondary to a university or tertiary level, topped off with an introduction to research, some of which is here at Wikiversity.

The general subject area is radiation astronomy. But, this includes knowledge from physics, chemistry, geography, history, and other subjects.


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Although a working knowledge of calculus and physics is beneficial, most of the concepts presented only require algebra. Additional learning resources where the student may increase their background knowledge while progressing through the course are provided.

Completion levels

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This course is dynamic, but may also be taken as a semester offering by Wikiversity, see the syllabus near the bottom of this page for the next formal class period.

Each component resource has a level of completion icon following it based on ≥ 100 kb equals 100 %, or 100 questions is 100 %, the midterm and final are based on 300 questions equals 100 %:

  1. This resource is a stub, which means that pretty well nothing has been done yet. 0-5%.
  2. This resource is just getting off the ground. Please feel welcome to help! 6-15%.
  3. Been started, but most of the work is still to be done - 16-30%.
  4. About halfway there. You may help to clarify and expand it - 31-45%.
  5. Almost complete, but you can help make it more thorough - 46-60%.
  6. Ready for testing by learners and teachers. Please begin! 61-75%.
  7. This resource is considered to be ready for use - 76-90%. R
  8. This resource has reached a high level of completion - 91-100%. C


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For a sixteen-week course, forty-eight lectures are needed. But, this is an advanced and specialized course so the number of lectures may vary.


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Each lecture has an associated quiz which is listed here.

Two-three lengthier exams often referred to as 'hourlies' (may take an hour to work through at a timed pace), a mid-term exam which is all-encompassing for the first half, and a final exam over the entire course material may be offered. The examinations are designed to be taken iteratively as many times as the student desires to achieve a thorough working knowledge of the subject.


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  1. Locating the Sun
  2. Neutrinos from the Sun
  3. X-ray classification of a star


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  1. The Sun may still have an iron, or iron-nickel, core.

See also

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{{Radiation astronomy resources}}