of "Lithograph: Cepheid Variable Star RS Puppis"
Lithograph: Cepheid Variable Star RS Puppis (PDF)
(3.9MB; Adobe Reader required)
This image from the Hubble Space Telescope shows the variable star RS Puppis. RS Puppis is an example of a special class of variable stars called Cepheid variables, which have a link between the period and intrinsic brightness of the star. This link allows astronomers to determine the distance to the star. The text explains the historic importance of Cepheid variable stars as mile markers. The lithograph includes a classroom activity.
Format(s) available: PDF
Grades: 10-12, but the material can be adapted for use in other grades at the teacher's discretion
How to use it in the classroom
Teachers can use Lithograph: Cepheid Variable Star RS Puppis as:
An example of a variable star. Use the inquiry-based classroom activity called "In Search of … Cepheid Variable Stars" that is included with the PDF lithograph.
An engagement tool in an inquiry-based lesson. Have students study the images on the lithograph. Ask them to write down any questions they have about the images. When the students are finished, their questions can be used in a variety of ways:
A content reading tool. Have students read the text on the lithograph and then write a quiz for the class.
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