Astronomy/astophysics

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Question
Dear Mr. Wagner,
Which is the meaning of Astrophysics? Is it the same of astonomy?
I'll apreciate your help and clarification.
Thanks a lot!
Regards,
jtp7r

Answer
HI Joseff

Good question.  The terms are often used interchangeably.  Originally, Astronomy was the study of the motions and laws of the stars and planets, while astrophysics focused on the internal workings of those bodies.  But now we use the two almost equally.

Here is a very good discussion of the topic:

http://space.about.com/od/astronomybasics/a/AstronomyAstrophysicsAstrology.htm

Hope that helps!

Paul Wagner

Astronomy

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Paul Wagner

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Astronomy and telescope making. Have made at least seven telescopes, both refractors and reflectors, and have spent 30 years looking at the nighttime sky.

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