Estimate magnitude CCD SN2002bo 20020430.0922 152CR BOI Observer:Claude Boivin (BOI);Obs 827, St Felicien,(Canada) ;C11 280mm at F/D=4; software PRISM;comparison with stars USNO A2.0 http://vsnet.astrosurf.com/snweb/2002/02bo/images/02boBO_C200204300205.htm http://vsnet.astrosurf.com/snweb/2002/02bo/images/02boBO_C200204300205.jpg Jean-Marie LLAPASSET Obs 635 Perpignan (France) http://perso.wanadoo.fr/jm.llapasset Site SN: http://vsnet.astrosurf.com/snweb/ Guide: http://vsnet.astrosurf.com/snweb/observer_guide.htm