[vsnet-alert 10562] V1309 Sco fading?

[Taichi Kato]

   Maehara-san has reported fading of V1309 Sco in the Ic band
(only Ic image was taken on Oct. 6).  The fading appears to be
accelerating, suggesting that dust formation has started.

  YYYYMMDD(UT)   mag  observer
  20080921.491   101  (Peter F. Williams)
  20080922.402  9.13V  (Kazuhiro Nakajima)
  20080922.404  8.03Rc  (Kazuhiro Nakajima)
  20080922.422  7.12Ic  (Hiroyuki Maehara)
  20080922.422  8.31Rc  (Hiroyuki Maehara)
  20080922.423  9.55V  (Hiroyuki Maehara)
  20080922.424  11.03B  (Hiroyuki Maehara)
  20080922.426  9.55y  (Hiroyuki Maehara)
  20080922.426    94  (Kiyotaka Kanai)
  20080923.408  9.60V  (Hiroshi Itoh)
  20080923.408  11.78B  (Hiroshi Itoh)
  20080923.410  8.36Rc  (Hiroshi Itoh)
  20080923.412  7.21Ic  (Hiroshi Itoh)
  20080924.430   100  (Kenji Hirosawa)
  20080926.425    96  (Kiyotaka Kanai)
  20081001.453  13.10B  (Hiroshi Itoh)
  20081001.456  10.09Rc  (Hiroshi Itoh)
  20081001.460  8.64Ic  (Hiroshi Itoh)
  20081001.460  11.53V  (Hiroshi Itoh)
  20081002.408  8.36Ic  (Hiroyuki Maehara)
  20081002.408  9.90Rc  (Hiroyuki Maehara)
  20081002.410  11.32V  (Hiroyuki Maehara)
  20081002.411  13.09B  (Hiroyuki Maehara)
  20081002.413  11.34y  (Hiroyuki Maehara)
  20081006.401  9.79Ic  (Hiroyuki Maehara)