Asteria is a free interactive night-sky map that runs in your browser. It shows the stars, planets, Moon, constellations, deep-sky objects and the Milky Way exactly as they appear tonight from your location — no install or sign-up needed. Check darkness and weather conditions for observing, browse upcoming celestial events like conjunctions, oppositions and meteor showers, take a guided tour of the night's highlights, or point your phone at the sky to identify what you're seeing.
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Asteria is built by Waddensky, organizer of stargazing tours and dark-sky experiences.