VSNET Mira Circular 2007.3 (JD 0d = 2454160) edited by T. Kato omicron Cet (M) 23(1) Naj,Smy R Leo (M) 58(1) Smy U Mon (RVB) 62(1) Smy U Ori (M) 70(1) Smy Z UMi (RCB) 143(1) POY Key to observers Naj Kenji Nakai POY Gary Poyner Smy Masaya Saitou