Welcome to the website for A Student's Guide to the Mathematics of Astronomy, and thanks for visiting. The purpose of this site is to supplement the material in the book by providing resources that will help you understand the mathematical concepts and techniques useful for introductory Astronomy. On this site, you'll find:

**Complete solutions to every problem in the book**

From this page, you'll be able to get a series of hints to help you solve each of the chapter-end problems in the text, or you can see the full solution to each problem straight away. Just use the menu on the left to click on one of the Chapters, select "Problems," and pick the problem for which you'd like some help. You can also see full solutions for each exercise in that chapter by selecting "Exercises."

**Video podcasts**

For each of the six chapters in the text, we've recorded a series of video podcasts in which we walk you through the most significant mathematical concepts contained within that chapter. When you watch these podcasts, you'll not only hear us talking, you'll be able to see our work on a "video scratchpad" on which we write equations and sketch helpful figures.

**Review documents and links**

You'll also find documents and links to additional information about the following topics:

- Significant figures

- The nature of light

- Center of mass

- Planet mass and conservation of momentum

- Conic sections

- Escape speed and energy

We hope you find the material on this site helpful, and we're interested in any comments you may have as to how this site (and the text) could be more useful to you. Thanks for your time.

To contact Dan Fleisch, send an e-mail to dfleisch@wittenberg.edu

To contact Julia Kregenow, send an e-mail to jkregenow@psu.edu