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Note: The Virtual Astronomy Labs access code found in copies of Thomson textbooks provides only student access to the labs. If you just wish to evaluate the labs themselves, please hit the Back button on your browser and click the Student login button. If you would like to set up a class online and track your students' lab work, please call our academic support center at 800-423-0563 (8 AM - 6 PM Eastern) and request a Virtual Astronomy Labs instructor access code.