Why Do We Use Angular Size Instead of Steradian for Objects in the Night Sky?

  • Level: Undergrad 
  • Thread starter Thread starter 4everphysics
  • Start date Start date
  • Tags Tags
    Angular
Join the discussion
Registration is free. Start your own thread to ask a follow-up.
Sign up Log in
1 reply · 3K views
4everphysics
Messages
19
Reaction score
0
When we measure the angle that certain object subtends in the night sky,
why do we commonly use angular size instead of steradian?
 
Astronomy news on Phys.org

Discussion

If the object is circular, it simplifies things.
 

Similar threads

Why Use Angular Acceleration Instead of Radial?

  • DaveTan
  • · Replies 3 ·
  • Introductory Physics Homework Help
Replies
3

High School For oscillations, why do we use angles in waves and oscillat

  • Cr4zyM4tt
  • · Replies 1 ·
  • Other Physics Topics
Replies
1

Graduate Why Do We Use a Mean Sun That Moves Along the Equator Instead of the Ecliptic?

  • JeffOCA
  • · Replies 4 ·
  • Astronomy, Astrophysics, Cosmology
Replies
4

Undergrad Why do we use anti-derivatives to find the values of definite integrals?

  • tahayassen
  • · Replies 18 ·
  • Calculus
Replies
18