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[vsnet-alert 1802] OVV observations




Optical Violently Variable
Photometric
3C279
yymmdd(UT)   mag     observer
980515.85       13.60R  D.Rodriguez
980517.85       14.02R  D.Rodriguez
980518.91       15.20V  J.Bosch

Mrk421
980517.90       12.60R D.Rodriguez
980518.91       12.85V J.Bosch

Mrk501
980517.95       13.08R D.Rodriguez

3C345
980517.92        15.28R D.Rodriguez

Telescope 26-cm+CCD Johson Filter    Diego Rodriguez
Telescope 31-cm+CCD Kron-Cousins Filter  Josep MBosch
Preliminary reductions errors about +/- 0.15 magnitude when bright, 0.25
when faint
 

M1 group 
Diego Rodriguez 
Madrid Spain
drodrig@globalmail.net






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