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No Fred, the stars must stay this time...this is because nebulosity doesn't fill the entire frame. Dare I say it, but I think you shouldn't have put the F/R in the optical train. You'll find removing the stars will look hideous as the sky background is present. A suggestion, don't think you are limited by the one combine routine for your data. You can use STD SReject for star control and Poisson SReject for nebulosity. Thus, you'll give smooth nebulosity (and tight after deconv), but with nice looking stars from the STD SReject data. Perhaps use lighten or overlay blend modes. Egg shaped stars are egg shaped stars, it takes some crazy processing efforts to correct them. Its typically easier to recollect data. You may also have greater success if you create a synthetic lum from the RGB data - assuming the stars look tight. A great piece of work. Well done. Doesn't top your lagoon. It will take some considerable effort to do that, but you've got the persistence to make it happen.
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