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Imagine the Universe!
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Sun Quiz

  1. The surface temperature of the Sun is approximately


  2. The solar surface emits most of its electromagnetic radiation in the


  3. The temperature of the upper layer of the Sun's atmosphere is



  4. X-ray emission comes mainly from the


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Dictionary Resources Teacher's Corner Ask an Astrophysicist

Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

The Imagine Team
Project Leader: Dr. Jim Lochner
All material on this site has been created and updated between 1997-2011.

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