Thanks Rick.
This is done in Photoshop, and then Movavi. But other programs can do it.
When I do daytime timelapses of clouds or such, then I will do them in camera in my Nikon, as it makes it so easy. But at night, it's a totally different story because the images end up totally dark on the ground area. The moon helps light up the ground, but it always sets or rises part way through the timelapse. If you play it back, you can see just how dark it gets after the moon is set. So by taking photos throughout the night, I can take them into ACR, and I can do 100% shadow recovery, often 50% black recovery to pull some detail from the ground, all the while also increasing the exposure while pulling down on the Highlights.
What I just described, would be impossible to do on a video. Editing a video is like editing an 8-bit jpg photo but worse. So while you can do some shadow and highlight recovery (with the right video editing software) it's still limited. Maybe only 10 % of the amount of recovery compared to a raw image.
So, night time timelapses are done as photos, and turned into a timelapse to allow greater editing flexibility.
Day time timelapses without the great dynamic range between the ground and sky are done in camera, with just minimal editing afterwards.
I look forward to what you get.