CH Cyg
A rapid fading was reported in the end of May. Similar systematic fadings
were observed in 1999 June and 2000 May (vsnet-campaign-symbio
16). The fading seems to have continued for about one month, and then
stopped in the early June (vsnet-campaign-symbio
18, 20).
The object started brightening (vsnet-campaign-symbio
23), but again became fainter; Observations of 8.3-8.9 were reported
during the early September (vsnet-campaign-symbio
29).