[vsnet-alert 10135] V2491 Cyg: returned to original fading trend; Fujii-san's new spectrum

[Taichi Kato]

   The fading of the nova returned to the smooth extension of
earlier fading trend.  Apparently the rebrightening was a transient
increase of the flux without very significant dust forming episode.

   Fujii-san's new spectrum on Apr. 28.  Fujii-san reported that
N III line has become weaker.

http://www1.harenet.ne.jp/~aikow/etc/v2491_cyg_20080428.gif

  YYYYMMDD(UT)   mag  observer
  20080421.702  10.12y  (Kazuhiro Nakajima)
  20080421.705  9.86V  (Kazuhiro Nakajima)
  20080421.707  8.78Rc  (Kazuhiro Nakajima)
  20080421.711  9.93B  (Kazuhiro Nakajima)
  20080421.988    99  (Bjorn H. Granslo)
  20080422.408  9.80V  (Martin Nicholson)
  20080422.408  9.85B  (Martin Nicholson)
  20080423.051    97  (Bjorn H. Granslo)
  20080424.000    98  (Bjorn H. Granslo)
  20080424.051  9.342C  (Lubomir Urbancok)
  20080424.125   101  (Jose Ripero)
  20080424.689    98  (Yutaka Maeda)
  20080424.690  9.84y  (Kazuhiro Nakajima)
  20080424.692  9.59V  (Kazuhiro Nakajima)
  20080424.696  8.68Rc  (Kazuhiro Nakajima)
  20080424.698  9.66B  (Kazuhiro Nakajima)
  20080424.778    98  (Susumu Takahashi)
  20080425.014    98  (Bjorn H. Granslo)
  20080425.016    94  (Laurent Bichon)
  20080425.444  9.57V  (Martin Nicholson)
  20080425.444  9.63B  (Martin Nicholson)
  20080425.765  9.86y  (Kazuhiro Nakajima)
  20080425.769  9.58V  (Kazuhiro Nakajima)
  20080425.770  8.68Rc  (Kazuhiro Nakajima)
  20080425.781  9.67B  (Kazuhiro Nakajima)
  20080425.929    95  (Laurent Bichon)
  20080426.373  8.72I  (Martin Nicholson)
  20080426.374  9.56V  (Martin Nicholson)
  20080426.376  9.60B  (Martin Nicholson)
  20080427.058    98  (Georg Comello)
  20080427.083    99  (Wolfgang Kriebel)
  20080428.401  10.00I  (Martin Nicholson)
  20080428.403  11.13V  (Martin Nicholson)
  20080428.403  11.17B  (Martin Nicholson)
  20080429.125   113  (Jose Ripero)
  20080429.706  11.12V  (Kazuhiro Nakajima)
  20080429.715  9.67Rc  (Kazuhiro Nakajima)
  20080429.720  11.12B  (Kazuhiro Nakajima)
  20080429.762  11.39y  (Kazuhiro Nakajima)