[vsnet-alert 20696] Z CMa brightening

[Hiroyuki Maehara]

Horie-san reported an outburst of Z CMa.

object         YYYYMMDD(UT)   mag  code
CMAZ           20170211.386    96  Heo.VSOLJ
CMAZ           20170212.529    94  Heo.VSOLJ
CMAZ           20170213.521    94  Heo.VSOLJ
CMAZ           20170215.501    92  Heo.VSOLJ
CMAZ           20170216.492    92  Heo.VSOLJ
CMAZ           20170217.465    88  Heo.VSOLJ
CMAZ           20170219.490    86  Heo.VSOLJ

Recent KWS data of this object are summarized as follows.
http://kws.cetus-net.org/~maehara/VSdata.py?object=Z+CMa&resolver=simbad&plot=1&obs_ys=2016&obs_ms=07&obs_ds=01&obs_ye=&obs_me=&obs_de=&submit=Send+query

object   date(UT)       mag.     code  err.
CMAZ     20170202.55650 9.817V   KW2   0.019
CMAZ     20170202.56574 9.801V   KW2   0.020
CMAZ     20170202.56610 9.790V   KW2   0.019
CMAZ     20170203.55760 9.814V   KW2   0.022
CMAZ     20170203.55796 9.802V   KW2   0.021
CMAZ     20170206.53825 9.825V   KW2   0.061
CMAZ     20170206.53861 9.667V   KW2   0.052
CMAZ     20170210.55565 9.655V   KW2   0.038
CMAZ     20170210.55601 9.703V   KW2   0.040
CMAZ     20170211.54603 9.607V   KW2   0.033
CMAZ     20170211.54639 9.662V   KW2   0.035
CMAZ     20170212.52608 9.573V   KW2   0.024
CMAZ     20170212.52644 9.595V   KW2   0.024
CMAZ     20170213.53580 9.524V   KW2   0.020
CMAZ     20170213.53616 9.502V   KW2   0.019
CMAZ     20170214.53743 9.535V   KW2   0.020
CMAZ     20170214.53779 9.464V   KW2   0.019
CMAZ     20170215.53203 9.381V   KW2   0.019
CMAZ     20170215.53238 9.363V   KW2   0.019
CMAZ     20170221.50356 8.300V   KW2   0.008
CMAZ     20170221.50392 8.318V   KW2   0.008
CMAZ     20170221.51274 8.322V   KW2   0.008
CMAZ     20170221.51309 8.313V   KW2   0.008