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observing aids

Title Posted By Updated/commented date Typesort icon
Obtaining your PEP epsilon(V) coefficient Anonymous 10 weeks 5 days ago Page
AAVSO Bulletin 74 for 2011 weo 3 years 22 weeks ago Page
Program stars in need of observation Matthew Templeton 32 weeks 4 days ago Page
Visual Observing Manual - Polish BSJ 1 year 36 weeks ago Page
AAVSO Bulletin Matthew Templeton 1 year 42 weeks ago Forum topic
AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484