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observing aids

Title Posted By Updated/commented datesort icon Type
Visual Observing Manual - Persian BSJ 25 weeks 5 days ago Page
Visual Observing Manual BSJ 25 weeks 5 days ago Page
Julian Date (JD) Calculator and Calendars BSJ 1 week 6 days ago Page
Program stars in need of observation Matthew Templeton 6 days 10 hours ago Page
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