First tutorial! Done for my friend Paula~
This is how I have developed to draw stars in my starry night skies and of course this is only one of many ways people do it so feel free to take this with a grain of salt.
One thing I have also taken to heart is using brushes to help me. This a rather crude way to draw stars, but I like my results and it works for me.
Some more tips
If you want less stars, just draw less strokes. If you decrease the count, you will get less dots that are produced. And just the opposite, increasing the count will produce more dots!
You of course can also go to Layer>Layer Style>Outer Glow to create the glow around the stars.
By decreasing the Spacing, Scatter, Count (to 1), and Count Jitter you get a pretty great brush for creating the bio-luminescent lines the Na’Vi have.
You can save the brushes by clicking that little paper on the bottom right corner in the brush editor. It looks like the same symbol as the new layer button.
Feel free to message me for questions!