How do I keep one frame only of a particle system?

It’s probably a simple thing, but I haven’t been able to do so. I am trying to do something with a particle system and I want to freeze one frame only and make all the particles be static objects. How can I do that?
Thank you.

Go to the frame you want; go to the modifier panel and click on the convert tab for your particle system. Or you can press Shift Ctrl A to make duplicates real.

Thank you AlanK. The answer was just in front of me, and the ctrl shift A wasn’t so obvious. Pressing the convert button kept crashing my laptop due to lack of ram. I’m trying to do a galaxy, and I’ve managed 160000 particles (stars) so far. But CTL SHFT A froze exactly one frame as I needed it.
Thank you very much.


Here’s what Ive got so far, still looking pretty fake compared to real photos.