Standalone Lessons

High School / Astronomy 101 What is a Star and How does a Star Form? - This is a short slideshow about star formation with an embedded activity.

Waves and the Electromagnetic Spectrum - This is a short slideshow with an embedded activity about waves and energy.

Filters - This is a short slideshow with an embedded video and activity explaining filters.

What is a YSO? - This is a short slideshow describing the different classes of young stellar objects (YSOs).

What is a Color-Magnitude Diagram? - A short set of notes describing a color-magnitude (Hertzsprung-Russell) diagram.

What is a Color-Color Diagram? - This is a short explanation of what a color-color magnitude diagram is and what it can tell you.

Where Does the Data Come From? - This is a slideshow with examples of different satellites and surveys that collect data in multiple wavelengths.

Using IRSA to Make Three-Color Images - This is an activity that teaches students what they will see when they search for an image on IRSA. It also walks students through how to make a three-color image in IRSA.

IRSA - Uploading a Catalog and Image Inspection - This is a slideshow explaining how to upload a catalog to IRSA. It also explains how to inspect an image.