Estimates magnitude CCD-C (AUDE) SN2001B 20010113.855 146C MSe SN2001C 20010107.933 142C MSe SN2001C 20010113.933 146C MSe SN2000db 20010113.956 156:C MSe Observer: Marc SERRAU (MSe), Cesson (France),Long 2.599暗 Lat 48.555偉,Alt 72m; C8 f/10;HiSIS23;software QMips32, PRiSM V4;Comparison: 2001B : comparison with stars U139 U138 (Odd Trondall) 2001C : comparison with star U107, U107 (Odd Trondall) 2000db : comparison with stars U132 et U142 Images at: http://aude.geoman.net/observation/SN/images/s01BSE1.jpg http://aude.geoman.net/observation/SN/images/S01CSE2.jpg http://aude.geoman.net/observation/SN/images/S01CSE2.jpg http://aude.geoman.net/observation/SN/images/s00dbSE1.jpg Jean Marie Llapasset Obs 635 Perpignan (France) jean-marie.llapasset@wanadoo.fr http://perso.wanadoo.fr/jm.llapasset/ http://aude.geoman.net/observation/SN/sn.html