How to extend an Image from side to side softening the hard edge of image

Oh umm, I didn’t know it was broken. I will look into it and amend the link. Thanks for the heads up.

Here’s another file with a black and white version of the corona for a fake eclipse effect or a mask.


https://drive.google.com/open?id=0B2f9Rho0-bZfNHZEN1dsX2R2WW8

P.S. I have fixed the other link now.