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observing aids

Title Posted By Updated/commented date Typesort icon
SID Monitoring Group FAQ Matthew Templeton 2 years 18 weeks ago Page
2013 JD Calendar BSJ 1 year 46 weeks ago Page
Visual Observing Manual - Turkish BSJ 47 weeks 6 days ago Page
AAVSO Bulletin Matthew Templeton 1 year 2 weeks ago Forum topic
AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484