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observing aids

Titlesort icon Posted By Updated/commented date Type
Visual Observing Manual in Persian BSJ 2 years 21 weeks ago Page
Visually observed stars known to be constant or not measurably variable Matthew Templeton 1 year 19 weeks ago Page
VLF Station List Matthew Templeton 3 years 51 weeks ago Page
WebObs willmcmain 9 weeks 10 hours ago Page
AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484