Estimates magnitude CCD-C (AUDE) SN2000dj 20000930.981 173CR PIN SN2000dn 20000930.911 172CR PIN SN2000cx 20000901.918 152CR MAK SN2000cx 20000910.010 157CR JTe SN2000cx 20000929.853 163CR JTe SN2000cx 20000930.947 165CR PIN Observer:Jean Paul Teng (JTe)and + (MAK);Observatory of Makes (Code: 181)(Ile de la Reunion);T 0.21m at F/D 3.1;Camera ST7; Software Prism; comparison with stars Ngc 525-5 seq APO. Observer:Paul PINEL (PIN): Observatory: Poitou (France); camera Kaff400 (Hisis22);T260mm F=1575mm; software Qmips32 and Prism.Photometry aperture comparison 2000dj with stars U149,162,162-2,148,158-2. comparison 2000cx with stars seq APO. comparison 2000dn with stars seq Odd Trondal 154, 156, 160, 165 . images at: http://aude.geoman.net/observation/SN/images/S00cxPI3.jpg http://aude.geoman.net/observation/SN/images/s00djPI1.jpg http://aude.geoman.net/observation/SN/images/s00djPI2.jpg http://aude.geoman.net/observation/SN/images/s00dnPI1.jpg and last image (vsnet-obs 29955) http://aude.geoman.net/observation/SN/images/s00djPI1.jpg Jean Marie Llapasset Obs 635 Perpignan (France) http://perso.wanadoo.fr/jm.llapasset/ http://aude.geoman.net/observation/SN/sn.html