Quick easy questionFormula for angular diameter?

  • #1
Soylentgreen
14
0
i am looking for the equation for angular diameter in relation to an objects distance and diameter.
i need it expressed in arc seconds, not radians.

anyone know it?
 

Answers and Replies

  • #2
cesiumfrog
2,009
5
Can you draw a picture and do some trig?
 
  • #3
russ_watters
Mentor
21,606
8,724
An arcmin is 1/60th of a degree and an arcesc is 1/60th of an arcmin. Can you draw a picture now...?
 

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