Andromeda's Scale

This Andromeda's Scale lesson plan also includes:

Young scholars perform a classroom activity of measuring the angular size of something from several distances. On the Internet, they obtain and examine images with various magnification factors and estimate the angular size of Andromeda.

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Classroom Considerations

  • This resource is only available on an unencrypted HTTP website. It should be fine for general use, but don’t use it to share any personally identifiable information