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Imagine the Universe!
Ask a High Energy Astronomer Dictionary Resources
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Awesome job! and Astronomically correct to boot! (The accepted value for the distance to HT Cas is 140 parsecs). You are continuing to demonstrate your aptitude in astronomy. Now you can use the distance you have found to calculate the time it will take for the radar pulse to return from HT Cas, and whether your experiment will work!

Return Click here to go back to calculating the strength of the returning radar pulse

Experiment Click here to go back and choose another experiment.

Home Imagine Science Special Exhibit Satellites and Data
Dictionary Resources Teachers' Corner Ask a High Energy Astronomer

Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Nicholas White (Director), within the Laboratory for High Energy Astrophysics 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 1997-2004.

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