[] Observations start of the Type Ic SN 2010X


We started the photometric observations of Type Ic SN 2010X. We adopted the reference magnitude of comparison star from USNO B1.0 catalog for the measuring the magnitude of SN. The preliminary results suggest that the luminosity has begun to be in decline phase. The decline rate of the light curve in the bluer bands show the more faster than those of the redder bands. We continue the observations of Type Ic SN 2010X.

[] Spectroscopy of Nova Oph 2010 : update


We update the spectra of Nova Oph 2010.

[] Spectroscopy of Type Ia SN 2010Y


We performed the spectroscopic observations of Type Ia SN 2010Y. Our spectrum shows the absorptions feature are broadened because of the expansion velocity. We confirm that the line profile is resemble of that of a typical SN Ia. The deep SiII absorption at 5800A indicates that SN 2010Y is categorized to slightly intrinsic dim object. This characteristic is corresponding to that the maximum absolute magnitude is derived as -18.1 mag from the our light curve. We cannot confirm the any features of CII 6580, which was seen at a week before maximum (reported in CBET 2168).

[] U Sco : update


We update the light curve of the recurrent nova U Sco.

Optical transient of UGC 2773 : update


We update the light curve of the optical transient of UGC 2773.