Angle of space motion and radialvelocity vector
Hello
So I am trying to figure out the angle of a space motion vector with its radial velocity vector. I have to sample equations, but despite plugging in the numbers I am not getting the same answers.
So I have:
tan1((4.74d(u")/(vr))
With:
d = 5.14 pc
u" = 0.66092"
vr = 26.3km s1
so:
tan1((4.74x5.14(0.66092)/26.3)
= 1.1779
But the answer is supposed to 31.5
I tried convering parsecs and kilometers to meters, but still didn't get the right answer.
What am I missing?
Also, I am not entirely sure what the 4.74 number is, I can't find it in my text book.
Thankyou in advance!
