I took the liberty of making an animated gif. Here 5MB.
http://d1355990.i49.quadrahosting.com.au/2016_05/PH.gif
What this really shows is how a 12" can perform in Paul's hands compared to a 20". SFA!
I made the other image the same brightness as Pauls with RegiStar.
Paul's image has the diffraction spikes at 45 degrees.
Bert