15984778_Astronomy___Astrophysics__A_A__ti_word_verbs_and_expressions__Error_
[The phrase to question] Of order Either (i) "on the order of" (US) or "of the order of" (UK) to mean "approximately" or else (ii) within an order of magnitude [Error?] 
x
x
M
R
x , R
I
Astronomy & Astrophysics (A&A)
Error?