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Parsecs Watch

1. I am really confused over this calculation:

2. A 'parsec' means 'a distance corresponding to a parallax of one arc second'

So where you got that a parsec is measured in degrees I'm not sure
3. (Original post by ekudamram)
A 'parsec' means 'a distance corresponding to a parallax of one arc second'

So where you got that a parsec is measured in degrees I'm not sure

1 arcsecond = 1/3600th of a degree or 0.000277777o(degrees)

that means replacing the arcsecond with the degree measurement gives: 1/ 0.000277777o = 3600o <----- I don't understand that part
4. http://en.wikipedia.org/wiki/Parsec#...nd_measurement

Have a look at this, namely the section 'Calculating the value of a parsec' - does that help?
5. (Original post by ekudamram)
http://en.wikipedia.org/wiki/Parsec#...nd_measurement

Have a look at this, namely the section 'Calculating the value of a parsec' - does that help?

Right, so the relationship between arcseconds and the degree values do not correspond when talking about parsecs. Am I right?
6. Can you post the question you're trying to solve?
7. (Original post by ekudamram)
Can you post the question you're trying to solve?

Is one parsec = 3600o according to the first post calculations?
8. (Original post by park1996)
Is one parsec = 3600o according to the first post calculations?
no, a parsec is not a measure of angles. it's not any amount of degrees. A parsec is a measure of distance based on using trig on the parallax angle observed from earth during it's orbit.
9. (Original post by Joinedup)
no, a parsec is not a measure of angles. it's not any amount of degrees. A parsec is a measure of distance based on using trig on the parallax angle observed from earth during it's orbit.

Thank you!

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