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observing aids

Title Posted By Updated/commented date Typesort icon
Program stars in need of observation Matthew Templeton 9 weeks 3 days ago Page
Visual Observing Manual - Turkish BSJ 2 years 11 weeks ago Page
SID Monitoring Group FAQ Matthew Templeton 3 years 34 weeks ago Page
2013 JD Calendar BSJ 3 years 9 weeks ago Page
Visual Observing Manual - French BSJ 2 years 35 weeks ago Page
Accuracy and Consistency in the Production of the American Sunspot Number (Ra) Matthew Templeton 2 years 11 weeks ago Page
AAVSO Bulletin 75 for 2012 weo 2 years 50 weeks ago Page
AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484