The Official Publication of the Amateur Astronomers Association of Princeton Director John Miller (609) 252-1223 jmiller@princetonastronomy.org Assistant Director John Church (609) 799-0723 j.church@mindspring.com Treasurer Program Chairman Michael Mitrano Ludy D'Angelo 609-737-6518 (609) 882-9336 ... Georgette and Bob North Membership Meeting Minutes March 11, 2008 Observatory: Dedicated AAAP member Gene Ramsey will relinquish has position as Observatory Co-Chairman for health reasons. ...

... We have used archival very long baseline interferometry (VLBI) data of more than 3000 compact extragalactic radio sources observed at frequencies, , from 2 to 43 GHz to measure the observed angular size of VLBI cores. ... Observed full width at half-maximum (FWHM) angular size of the VLBI core component of AGNs at 2, 5, 8, 15, 24 and 43 GHz versus the absolute value of galactic latitude. ... If a source was observed over multiple epochs, the median of the observed angular size is given. ...