Thank you for this game. My daughter was delighted to play a simulator where you can launch the sun and planets, turn on the trail, set the initial speed. See the video with screenshots from this game: 

https://youtu.be/xuYz5aDsvcc

Hey, you're both very welcome, thanks so much for playing!
I'm so glad your daughter enjoyed herself.
Stay tuned for a big update soon!

Hey componavt, email me at toran.richards@gmail.com. 
I'd like to give you and your daughter a copy of the newly released full game.