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observing aids

Title Posted By Updated/commented date Typesort icon
Mentor Program SXN 29 weeks 6 days ago Page
Computing the JD or UT BSJ 4 years 42 weeks ago Page
CCD Views June 2001 Aaron Price 31 weeks 2 days ago Page
Obtaining your PEP epsilon(V) coefficient Anonymous 20 weeks 2 days ago Page
AAVSO Bulletin Matthew Templeton 2 years 1 day ago Forum topic
AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484