Greetings from the center of the universe. My name is Calvin, and this is the planetarium at the center of the universe. Although it is much smaller than many planetariums out there, it still entertains humans all the same. But even a small planetarium such as this is not practical for your own home. For that, we need the next best thing, Stellarium. It's an entire planetarium that fits inside your computer. I'll show you how it works. You can get Stellarium at their website, Stellarium.org. The program is free, open source, and community-funded. So just download the appropriate installer for your operating system. There's also Stellarium web, which just runs in your browser so you don't have to download anything, but it has way less features. And there's also a user guide that goes way more in depth than this video. This is just for the basics. So let's get into Stellarium. Okay, so here we are in Stellarium. When you first start it up, you'll either be looking at a sunny sky or a starry night depending on the time. You can see my time at the bottom here. When I put my mouse down here, it opens up this menu. You can see my time here, just the frame rate and the field of view. How much of the sky, how much of the area you can see at one time. And then over here is my location. I'm on Earth and in Victoria. And if you move the mouse on the left side, you'll bring up the left menu. So I'll explain these menus in a second. I just remember that you can click to drag to look around at the sky, which is really important. You can also use the arrow keys as well. Just notice that you can't actually roll the camera. We're on it as a move amount here, just like a telescope. So that's the sort of what we get. We can also zoom in though by using the mouse wheel to scroll to see the sun and Venus there. And now there's Jupiter's title coming up here. Here's Jupiter. You can zoom all the way in and see its moons as well. You can see it sort of drifting along the sky as the Earth rotates. Notice that if you zoom out a little too far, it kind of starts to look distorted, which is kind of hard to look at. So you can see the field of view changing here. OK, let's look at some of these bottom options here. I'll just go through a few of the interesting ones and ignore some of the other ones that you can figure out on your own. So we can start with the ground. You can turn the ground off if you want to be able to just look anywhere. And you can also turn the atmosphere off so that even with the sun is up, you can still see the stars. You can turn the kernel points on and off. Of course, deep sky objects are like, nebulae and galaxies and stuff. So that highlights those. And then same with planets, their labels are on by default. You can turn them on and off. This switches the mount. So we can be go from an as move out to an equatorial mount. So it's sort of a different way that telescopes are mounted. And then we can center objects. So when you are looking around at things, you can click on them and it brings up a lot of information. Some of it is interesting. And we can use this button here to just center on it and lock on. So that if we are zoomed in, we stay locked on rather than drifting. I can right click to disable that and then it goes back to our views being locked to Earth itself. Okay, this button is just night mode, which is a little easier on the eyes. If you actually bring your computer outside at night to do some observing. Full screen mode, self explanatory. This is all kind of explanatory self explanatory as well. This just highlights certain things. But more interestingly is the time travel options here. So whenever you click on fast forward, for example, it increases the speed by 10 times, I believe. And so you can really get it going if you need to. And then of course there's reverse to slow down time. We can click here to go to normal time rate. And you can look at the clock to see it's back to normal again. This will actually reverse it if you click it enough times. Go back to normal and then this button always just sends you back to now now. And of course that's the quit button right there. Over here, we've got just a few different grids that you can look at if you're interested in that. And then there's also the constellation lines, the labels and also the artwork. So these are some of the common options you'll be switching on. And off as you play around. And the left menu, I'll just to show a few of these. So if your time is incorrect or you just simply want to go to a different time, you can open this pretty straight forward seconds, minutes, hours, days, months, even years. And we've also got location. So you can change your location by looking for a city in here by searching for you can also just click to a different place on earth. And you've got many more options down here to find yourself a good location to look at the stars. So we can just close those or leave them open if we want if we want to keep using them. Here's a more kind of advanced menu here. You can turn stars straight up on and off, set the twinkling or any labels and such. There's also the solar system objects will like moons and planets, deep scale objects again like galaxies and nebulae. You can have different catalogs, the different sort of data sets of them all on or off. And markings are just for more of those grids. You can get a very specific if you really want to landscape is that image that you can turn on and off. There's different ones we can be on different planets or different places on earth. And StarLore is the artwork for the constellations. So there's a few. Installarium already. A search window is helpful if you want to search for things. You can simply go directly to them if you don't know where they are. We can search for Venus and find that. It searches a number of different objects. Okay. And the configuration window for actual like system options. I won't go into any of these. But date and time format might be nice if you have different preferences and you can get into more advanced things with tools and scripting as well. Okay. That pretty well covers it for this little introduction. And then we can get into activities in other videos. So look for that. I will simply press this button to quit. Easy as that. Exo Explorations is a grade school level educational resource that teaches about stars in the sky and the planets that orbit them. You can learn more at centeroftheuniverse.org slash exoexplorations.