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observing aids

Title Posted By Updated/commented date Typesort icon
Visual Observing Manual - Portuguese BSJ 1 year 4 weeks ago Page
Visually observed stars known to be constant or not measurably variable Matthew Templeton 1 year 41 weeks ago Page
Visual Observing Manual - Japanese BSJ 1 year 4 weeks ago Page
AAVSO Bulletin Matthew Templeton 1 year 11 weeks ago Forum topic
AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484