start a new project (in example 1200x800 black)

go to your brush dialog,and click on the stars brush and put the size at + - 136

put your cursor on the black background
hold the left mouse button,and sliding across your entire background until it has been filled with the small stars.
(see example below)




Now go back to your brush dialogue,and double the size to + -264

hold the left mouse button and slide over the whole image
Now will appear bigger stars,as in Example below



go back to your brush dialogue and double the size again to +- 528

Now go to your picture
the stars are now bigger, we do not slide over the entire image
  click here and there once
as shown in the example below you will now have a universe with stars



the stars Brush is in the attachment

Thank you gimper

Cheers gimper66

Looks pretty good gimper66. I can never have enough star brushes.

wow, who is that scary person coming out of the sky?

Thanks . I'll try this instead of the noise steps which have been frustrating me because of too much uniformity in the sizes .

Good question Molly. I wonder who that could be?

probably an alien sneaking to earth

Okay, LOVE the star brush. Put together a quick starscape to help someone and it came out lovely:

viewtopic.php?f=8&t=12390&p=168016#p168016