[vsnet-obs 87352] VS observations by Kai (May 18)

[Hiroyuki Maehara mira@cetus-net.org via vsnet-obs]

CCD magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag      code
PERV392        20180518.852   9.37Ic   Kai.VSOLJ
PERV392        20180518.853   10.92V   Kai.VSOLJ
PERV392        20180518.853   11.62B   Kai.VSOLJ
PERV392        20180518.853   9.73Rc   Kai.VSOLJ

Observer: Kiyoshi Kasai (Switzerland)
Instruments: 28cmSCT + ST-7XME