Skip to main content

observing aids

Title Posted Bysort icon Updated/commented date Type
Visual Observing Manual BSJ 26 weeks 2 days ago Page
Computing the JD or UT BSJ 4 years 1 week ago Page
2012 JD Calendar BSJ 3 years 1 week ago Page
CCD Views June 2001 Aaron Price 3 years 25 weeks ago Page
AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484