Imagine the Universe!
Frown

You run your calculations by another professor in the astronomy department before going ahead with your radar pulse experiment, and he advises you to go back and check your math one last time.

Some things you may want to check include: the distance to HT Cas is 140 pc. Make sure you use a total distance traveled (to and from from HT Cas) of 280 pc to calculate your answer. Also, don't forget to check your units! The speed of light is given in meters per second, so your answer will be in seconds. You will then need to convert this to years.

Return Go back and recalculate the time it would take the radar signals to return from HT Cas

Experiment Go back to the beginning and select another experiment

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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