Astronomy Tool / Star Map
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UC Observatories shares astronomy research, resources, and observatory info from the University of California, supporting science and public outreach.
Explore NASA's Near-Earth Object database for up-to-date info on asteroid risks, close approaches, orbits, and more. Track NEOs and learn about space safety.
Explore solar storms and space weather with real-time images and data from the STEREO space observatory, tracking the Sun and its activity.
Browse and explore a comprehensive, open database of all discovered exoplanets, with data contributed by astronomers and the public.
Explore RHESSI mission data, solar flare images, and scientific resources for studying high-energy solar phenomena and space science research.
Explore detailed info on Mars landing sites, mission data, and scientific resources for researchers, students, and enthusiasts interested in Mars exploration.
Create a custom star map showing the night sky from any date and location. Perfect for gifts, keepsakes, or commemorating special moments.
Provides authoritative ANSI C and Fortran libraries with standard algorithms for astronomy calculations, including time, motion, and celestial models.
Explore the universe in real time with remote telescope access, live online observations, and stunning space imagery from The Virtual Telescope Project.
Explore the universe with Gemini Observatory's twin telescopes in Hawaii and Chile, offering sky observations, research, and astronomy resources.
Explore the Chandra X-ray Center portal for high-energy astrophysics data, research tools, and resources from the Harvard-Smithsonian Center for Astrophysics.
Explore and download resources for Celestia, the 3D space simulator, and connect with a community of astronomy fans and addon creators.
ClearDarkSky provides detailed sky charts and weather forecasts to help astronomers and stargazers plan the best nights for observing the sky.
Learn about Earth, space, and the arts with interactive resources, activities, and multimedia—available in English and Spanish for all ages.
Explore the night sky with interactive star maps, real-time data on planets and comets, and guides for astronomy enthusiasts of all levels.
Farmers' Almanac offers long-range weather forecasts, gardening tips, fishing calendars, and stargazing guides to help you plan your days and seasons.
OPT Telescopes lets you shop for new and used telescopes, cameras, and accessories, offering expert advice and resources for astronomy enthusiasts.