Question: how can i use together the op command with animate command?

i want to use the new point's (c) coordinates but how can i correct this? thank you for helps.
a:=point([1,0,0],color=red,thickness=6):
c:=animate([rotate[a,alpha,[[0,0,0],[px,py,pz]]]],g2=0..2*Pi):
cx,cy,cz:=animate([op[c][]],g2=0..2*Pi):                                                                                                                                        
Error, cannot split rhs for multiple assignment

(also px,py,pz change with respect to g2)
 
 
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