Https:/// - is a physics-based space simulator. 7 space websites - listen to radiobroadcasts and leave earth at the speed of light, see all the current active satellites orbiting earth, play an old windows spaced theme pinball game.Once you've graduated to three dimensions, Universe Sandbox ($30, $20 on GOG) will really. Orbit (Free app, $5 on Steam) is another, similar game to introduce orbit. Osmos (Free demo, $5 full) is a great starting point that uses simplified gravity in two dimensions. Question for my 9 yo You can physically demonstrate orbit with some fabric stretched over a frame, but I really think video games are going to be your best friend here.It is constantly updated as new observations are made. Where can I find a full scale simulation of the observable universe? Universe Sandbox is the best version I know of.What would happen if a huge asteroid (lets say the size of Jupiter or bigger) passed earth, barely taking out a side of earth while doing so? How would it effect the earth? I highly recommend you buy the software called Universe Sandbox, you can do this exact scenario and see it with your own eyes.Based on a comparison chart of the different version on this website: (you need scroll down to find it), To me, the pro version really added in more professional catalogs that you need a big telescope (at least 12 or 14 inch above at good site to see them). Sky safari pro or plus? I think it depends on what scope do you have.Then you can use app like SkySafari on your phone/tablet to connect to your telescope/Nexus II, by doing this your telescope will be a 'Push-To' not 'Go-To'.

Nexus II has its own WiFi network, which you can connect to with your phone/tablet. You need to connect your encoders to another device, like Nexus II (which what I have) or Nexus DSC Pro. Help with gso encoder kit This is the Encoder Kit, like this one here.If you want to to see what planets are visible in any given night without the need to scroll through the entire night, most astronomy apps like SkySafari have a 'Best of Tonight' feature that also lists the planets. Identifying when to view planets Stellarium as suggested gives you the opportunity to see which planets are above the horizon at any given time.Each app offers different features, so in the end it's a matter of personal preference or needs. Other often recommended apps are SkySafari and Stellarium. Where can I learn quick astronomy, identifying constellations, identifying things in the night sky? As for apps, feel free to try out my app Nightshift if you're on Android.

Skysafari vs stellarium