AAVSO Alert Notice 464: Observers Requested for Jovian Extinction EventsAAVSO Alert Notice 464: Observers Requested for Jovian Extinction Events
AAVSO Alert Notice 464<br /> Observers requested for Jovian Extinction Events (JEE2012)<br /> July 6, 2012 <p>Scotty Degenhardt (Santa Fe, NM), a pioneer in the use of video for timing eclipses of solar