This guide explains what FITS files are, and how to view them on your computer using DS9. Please use this guide the way that makes the most sense to you. You may want to read the entire guide first, then go back and follow the steps. Or you may want to open two or more tabs or windows in your browser so that you can try the steps in one window and have the instructions open in another. Or you can use the Printer-friendly version link below to print this guide and have it in front of you as you work through the steps on your computer.
You will find that the text contains many links. Some are to show you where you need to go, but most are links to more information about a topic. They are intended to give you a way to learn more if you would like. However, you do not need to follow them to understand the guide you are reading.
