Calculate sunrise and sunset times for any location globally and any day of the year. Explore earliest/latest times, the equation of time, and sun inclination. Visualize the sun's position on Earth.
SunGraph by Tremont Air, LLC




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Calculate sunrise and sunset times for any location globally and any day of the year. Explore earliest/latest times, the equation of time, and sun inclination. Visualize the sun's position on Earth.





This app offers a modern interpretation of an ancient astronomical instrument, providing a real-time view of the sky. It displays the time of day, day of the year, and the positions of celestial bodies like the Sun, Moon, planets, and stars. Users can also track sunrise/sunset times, moon phases, and celestial transits.






Plan your celestial observations with detailed weather forecasts and astronomical data. Discover optimal viewing conditions, track celestial events, and connect with a community of stargazers. Find dark-sky locations and get AI-powered tips for the best astrophotography.