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See the visible sky above you: stars, planets, comets, and satellite passes, computed on your device and working without a signal. THE NAKED-EYE SKY AND MILLIONS OF FAINTER STARS The catalog covers the naked-eye sky with names, rendered color, and distance data where available. Zoom in and millions of fainter stars fade into view, the sky as binoculars or a telescope would show it. All 88 constellations, drawn and labeled, plus the Milky Way and 110 famous galaxies, star clusters, and nebulae. Twilight brightens the sky and washes out the stars just like the real thing, and the Moon always shows its true phase. THE MOON, THE PLANETS, AND VISITING COMETS Place the Sun, Moon, and planets for tonight, another date, or the night you were born, including Jupiter's four largest moons. Track visiting comets and their predicted brightness. Find major meteor showers and the points from which they appear to radiate. CATCH A SATELLITE PASS Track the Space Station, Starlink trains, GPS, and other satellites from orbital data. Show just the bright ones you can spot by eye, the space stations, Starlink, or everything up there. Pass predictions show when to step outside and whether the satellite should be sunlit and visible. Pick any satellite to see how fast it's moving, how high it is, when it launched, and its path drawn across the stars. HIGHLIGHTS Plan an observing night: the calendar covers eclipses, Moon phases, planetary pairings, comet peaks, meteor showers, and visible satellite passes. Point and identify: hold up your iPhone or iPad and the map follows the sky; search for an object to move directly to it. Protect your night vision: use red night mode, move through time, or run a time-lapse before heading outside. Use it without a signal: included catalogs and orbital calculations work from a location fix or coordinates you enter. ONE PURCHASE, EVERY DEVICE One purchase covers Mac, iPhone, and iPad. No account, no subscription, no in-app purchases, no ads, no analytics, and no tracking. Core sky maps work without a cloud service.
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