Estimates magnitude CCD-C (Aude) comparison stars USNO SN1999cp 990622.885 155C P DUPOUY image will be found in address below. http://aude.geoman.net/observation/SN/images/s99cpDA1.JPG SN1999cl 990615.922 137C R ROY SN1999cl 990617.869 137C R ROY Sn1999cl 990620.125 135C C BOIVIN image will be found in address below. http://ftp.globetrotter.net/astroccd/cboivin/cookbook/Sn1999cl0619.jpg Observer: Philippe DUPOUY: Observatory 958 (DAX France); Rene ROY:Observatory 627 (Blauvac- France); Claude BOIVIN Observatory 827 (St Felicien Canada) Jean Marie Llapasset Obs 635 (France) http://aude.geoman.net/observation/SN/sn.html