Thank you all for the reply.
[John Cuevas] “What are you using to create your flare(AE Flare effect)? That looks like a third party flare to me, which makes things a bit easier.
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I am using the simple AE flare which works great, But getting the rotation right, not so. I have the flare on a solid background and have used Knoll UnMult to transparent the background, I will try and set the anchor point to the centre within the circle (what George mentioned) and see how that goes.