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.
| 
