You'll only see the brightest stars and planets amid the glow of a Bortle-class-9 sky. It has nine levels, from class 1, which is the darkest sky you can find on Earth, to class 9, which is the most light-polluted city sky. There's a numeric scale, called the Bortle scale, to help would-be stargazers know how bright the sky is likely to be above a given location. Credit: International Dark Sky Association The Bortle scale helps amateur astronomers and stargazers to know how much light pollution is in the sky where they observe. The larger and more developed a city is, the more light pollution it tends to produce. It's a combined effect of scattered light from these things that manifests as a glow in the night sky. Light pollution is stray light from parking lots, sport complexes, street lights, and other human activity. The reason for this is light pollution – stray light from urban areas scattered into the night sky. There are many more faint stars in the sky than bright ones, and only the brightest stars and planets are brilliant enough to see in bright, urban skies. This is especially true if you want to be able to see the Milky Way. To begin with, you need dark skies away from city lights to see more stars. Here are some key things to know about how to find the best places for stargazing. If you're hoping to do some skywatching, but you're not quite sure how to find a great spot, we have you covered. Are you feeling wistful for star-streaked views of the night sky? Hoping to get the most out of a meteor shower? Or perhaps you live in a large city and you've never even seen the Milky Way?
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