Non centered Parallax Question

azaharak

Ok

in Part two of this lab found here

http://www.astro.lsa.umich.edu/under.../px_intro.html

It discusses calculating the parallax angle when the object is not between the baseline (figure 2)

I agree with the relation for the parallax angle, And I agree with the general result from part 1 which allows one to determine the distance R to the object. I don't agree that you can use the parallax angle from part 2 into the relation from part 1 to find what the author calls R.

Note This is not a hw assigment, or my lab. (How does one justify using the formula from part 1 with the parallax from part 2)?