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Whether you're just getting started or a professional astronomer, it's always helpful to have what you need at your fingertips.

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The authoritative source of historical records and new discoveries for our solar systems minor bodies.

Solar Eclipse

Vibrant community of astrophotographers.


A project to digitise over 100,000 archival photographic astronomical plates.

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Detailed astronomical planning tool including photometric information.

Image by Casey Horner

Web-based target planning tool tightly integrated with Voyager software.


American Association of Variable Star Observers is a leading organisation for the collection and management of star photometry and spectra.

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