in-the-sky.org
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In-The-Sky.org is an astronomy resource for skywatchers, offering current and future celestial events along with ephemerides and practical observing data—planetary positions, Sun/Moon data, rise/set times, and calendars for eclipses, meteor showers, and other phenomena.
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stellarium.org
Stellarium is a free, open-source planetarium software that renders realistic night skies—stars, planets, constellations, and deep-sky objects—for any date, time, and location. The site offers downloads for multiple platforms and extensive documentation, tutorials, and examples to help you explore and learn astronomy.
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