There's a bit of a learning curve, but stay with it. Once installed, you'll have an icon shortcut on your desktop. It's a 185 megabyte file that you can then install on your computer. Want to know what time the full moon tonight will cross your meridian? Go to Stellarium, and see for yourself.Ĭlick the link to go to the page to download Stellarium. Want to watch Mintaka rise due east and set due west to prove to yourself it actually does this? Stellarium will show it to you. Now, that I see how it works, all the explanations make sense. I never could visualize how the sun worked at the North and South Poles, until I watched it on Stellarium. Just open Stellarium, set the place and the date, manipulate the time, and.watch the sunrise! It's amazing. Let's say you want to see the direction and trajectory of sunrise at any particular place on earth for any particular day of any year. Stellarium, a free, downloadable planetarium can allow you do to just that. It's one thing to read about how the sky works. Stellarium - A Free, Downloadable Planetarium If you don't have a compass (they do get lost and broken), you've always got the sky, unless it's clouded over. If the sun, the stars, and/or the moon back up what your compass tells you, you have proof your compass is working correctly. You probably have a compass, so why is it important for a navigator to use celestial bodies for direction? As I've said on these pages quite a few times, "A good navigator never likes to rely on any one piece of information." Your compass is one piece of information. In that section, I go over how to use the sun, the stars, and the moon to find direction.
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