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Question........Parsecs!!!

Does anyone have a straight definition of a parsec?? i cant seem to find them in any of my books!
..:: Sim ::..
Reply 1
Avatar for Mohit_C
Mohit_C
10
Wikipedia?

The parsec (symbol pc) is a unit of length used in astronomy. The length of the parsec is based on the method of trigonometric parallax, one of the oldest methods for measuring the distances to stars.

The name parsec stands for "parallax of one second of arc", and one parsec is defined to be the distance from the Earth to a star that has a parallax of 1 arcsecond.
Reply 2
Avatar for Sidhe
Sidhe
An excellent description courtesy of F1.

http://www.thestudentroom.co.uk/showpost.php?p=8463879&postcount=7

Ignore part 2 and 3 they apply to another question.
Reply 3
Avatar for Mohit_C
Mohit_C
10
Sidhe
An excellent description courtesy of F1.

http://www.thestudentroom.co.uk/showpost.php?p=8463879&postcount=7

Ignore part 2 and 3 they apply to another question.


Better than wikipedia.:wink:
Reply 4
Avatar for fblade
fblade
14
Mohit_C
Better than wikipedia.:wink:

Indeed, I'm actually starting to get this Cosmology shiz.

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