##Mathematica, 60 bytes
Mathematica, 60 bytes
NumberForm[t/.NSolve[Sin[t/180Pi]==#&<=t<=#3,{t}],{9,3}]&
input
[0, -1080, 1080]
output
{-1080.000,-900.000,-720.000,-540.000,-360.000,-180.000,0.000,180.000,360.000,540.000,720.000,900.000,1080.000}