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observing aids

Title Posted Bysort icon Updated/commented date Type
Computing the JD or UT BSJ 4 years 23 weeks ago Page
2012 JD Calendar BSJ 3 years 22 weeks ago Page
CCD Views June 2001 Aaron Price 11 weeks 5 days ago Page
Obtaining your PEP epsilon(V) coefficient Anonymous 6 days 1 hour ago Page
The Photoelectric Photometry (PEP) Observing Program of the AAVSO: An Introduction Anonymous 6 days 1 hour ago Page
AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484