[vsnet-alert 9402] V5558 Sgr further brightening to a brightness peak; similarity to V723 Cas

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Wed Jul 11 09:59:54 JST 2007


   V5558 Sgr further brightening.  Data up to now:
The light curve (although still somewhat peculiar) seems to
resemble premaximum to brightness peak of V723 Cas.
V723 Cas took 140 d before the first brightness peak emerges,
while V5558 Sgr took 80 d.

  YYYYMMDD(UT)   mag  observer
  20070412.376  11.186C  (Pi of the Sky)
  20070413.378  10.854C  (Pi of the Sky)
  20070414.393  10.730C  (Pi of the Sky)
  20070415.405  10.416C  (Pi of the Sky)
  20070417.381  10.086C  (Pi of the Sky)
  20070418.396  10.031C  (Pi of the Sky)
  20070418.885  9.27C  (Seiichiro Kiyota)
  20070421.103    99  (Wolfgang Kriebel)
  20070422.378  9.773C  (Pi of the Sky)
  20070423.092    97  (Wolfgang Kriebel)
  20070423.381  9.556C  (Pi of the Sky)
  20070423.715  9.60V  (Kazuhiro Nakajima)
  20070423.720  8.85Rc  (Kazuhiro Nakajima)
  20070423.724  10.15B  (Kazuhiro Nakajima)
  20070423.795  9.53y  (Kazuhiro Nakajima)
  20070425.384  9.400C  (Pi of the Sky)
  20070425.465  8.91CV  (Daniel Mendicini)
  20070425.693  9.49y  (Kazuhiro Nakajima)
  20070425.700  9.43V  (Kazuhiro Nakajima)
  20070425.708  8.72Rc  (Kazuhiro Nakajima)
  20070425.714  10.07B  (Kazuhiro Nakajima)
  20070426.771  9.41V  (Kazuhiro Nakajima)
  20070426.774  8.69Rc  (Kazuhiro Nakajima)
  20070426.779  10.08B  (Kazuhiro Nakajima)
  20070426.786  9.48y  (Kazuhiro Nakajima)
  20070428.078    96  (Wolfgang Kriebel)
  20070428.703  9.39V  (Kazuhiro Nakajima)
  20070428.707  8.67Rc  (Kazuhiro Nakajima)
  20070428.714  10.03B  (Kazuhiro Nakajima)
  20070428.781   93C  
  20070428.788  9.47y  (Kazuhiro Nakajima)
  20070428.805  8.02Ic  (Hiroyuki Maehara)
  20070428.806  8.66Rc  (Hiroyuki Maehara)
  20070428.806  9.31V  (Hiroyuki Maehara)
  20070428.807  10.02B  (Hiroyuki Maehara)
  20070428.808  9.29y  (Hiroyuki Maehara)
  20070429.725  9.34V  (Kazuhiro Nakajima)
  20070429.728  8.62Rc  (Kazuhiro Nakajima)
  20070429.731  9.99B  (Kazuhiro Nakajima)
  20070429.761  9.42y  (Kazuhiro Nakajima)
  20070429.790  9.00V  (Hiroshi Itoh)
  20070430.052  9.54V  (Daniel Mendicini)
  20070507.651  9.02V  (Kazuhiro Nakajima)
  20070507.653  8.29Rc  (Kazuhiro Nakajima)
  20070507.654  9.68B  (Kazuhiro Nakajima)
  20070507.660    90  (Kiyotaka Kanai)
  20070507.663  9.13y  (Kazuhiro Nakajima)
  20070507.703    90  (Kiyotaka Kanai)
  20070507.737    90  (Kiyotaka Kanai)
  20070507.762  7.75Ic  (Hiroyuki Maehara)
  20070507.762  8.33Rc  (Hiroyuki Maehara)
  20070507.763  8.97V  (Hiroyuki Maehara)
  20070507.764  9.67B  (Hiroyuki Maehara)
  20070507.765  8.97y  (Hiroyuki Maehara)
  20070507.772    90  (Kiyotaka Kanai)
  20070508.730  7.67Ic  (Hiroyuki Maehara)
  20070508.730  8.30Rc  (Hiroyuki Maehara)
  20070508.731  8.96V  (Hiroyuki Maehara)
  20070508.732  9.69B  (Hiroyuki Maehara)
  20070508.733  8.98y  (Hiroyuki Maehara)
  20070508.761  9.02V  (Kazuhiro Nakajima)
  20070508.764  8.27Rc  (Kazuhiro Nakajima)
  20070508.765  9.69B  (Kazuhiro Nakajima)
  20070508.768  9.13y  (Kazuhiro Nakajima)
  20070508.769    90  (Kiyotaka Kanai)
  20070510.154  9.025C  (Pi of the Sky)
  20070510.375  9.016C  (Pi of the Sky)
  20070510.788    90  (Kiyotaka Kanai)
  20070511.689    90  (Kiyotaka Kanai)
  20070511.710  8.97V  (Kazuhiro Nakajima)
  20070511.717  8.26Rc  (Kazuhiro Nakajima)
  20070511.722  7.66Ic  (Hiroyuki Maehara)
  20070511.723  8.29Rc  (Hiroyuki Maehara)
  20070511.724  8.94V  (Hiroyuki Maehara)
  20070511.724  9.67B  (Kazuhiro Nakajima)
  20070511.725  9.65B  (Hiroyuki Maehara)
  20070511.726  8.93y  (Hiroyuki Maehara)
  20070511.729  9.06y  (Kazuhiro Nakajima)
  20070511.744    90  (Kiyotaka Kanai)
  20070512.151  8.940C  (Pi of the Sky)
  20070512.381  8.969C  (Pi of the Sky)
  20070513.149  8.940C  (Pi of the Sky)
  20070513.381  9.028C  (Pi of the Sky)
  20070513.623    89  (Kiyotaka Kanai)
  20070513.649    89  (Kiyotaka Kanai)
  20070513.692    89  (Kiyotaka Kanai)
  20070513.742    89  (Kiyotaka Kanai)
  20070513.743  8.97V  (Kazuhiro Nakajima)
  20070513.769    90  (Kiyotaka Kanai)
  20070514.153  8.942C  (Pi of the Sky)
  20070514.376  8.928C  (Pi of the Sky)
  20070514.715  8.94V  (Kazuhiro Nakajima)
  20070514.719  8.22Rc  (Kazuhiro Nakajima)
  20070514.735  9.63B  (Kazuhiro Nakajima)
  20070514.757  9.02y  (Kazuhiro Nakajima)
  20070515.150  8.963C  (Pi of the Sky)
  20070515.606    90  (Kiyotaka Kanai)
  20070515.649    90  (Kiyotaka Kanai)
  20070517.151  8.870C  (Pi of the Sky)
  20070517.587    90  (Kiyotaka Kanai)
  20070517.624    90  (Kiyotaka Kanai)
  20070517.678    90  (Kiyotaka Kanai)
  20070517.744  8.93V  (Kazuhiro Nakajima)
  20070517.747  8.18Rc  (Kazuhiro Nakajima)
  20070517.752  9.61B  (Kazuhiro Nakajima)
  20070517.771  9.02y  (Kazuhiro Nakajima)
  20070518.153  8.932C  (Pi of the Sky)
  20070518.375  8.920C  (Pi of the Sky)
  20070519.592    90  (Kiyotaka Kanai)
  20070519.658    90  (Kiyotaka Kanai)
  20070519.699    90  (Kiyotaka Kanai)
  20070519.714  8.94y  (Kazuhiro Nakajima)
  20070519.721  8.90V  (Kazuhiro Nakajima)
  20070519.726  8.16Rc  (Kazuhiro Nakajima)
  20070519.729  9.56B  (Kazuhiro Nakajima)
  20070519.735  8.83V  (Hiroshi Itoh)
  20070520.031    91  (Wolfgang Kriebel)
  20070520.140  8.877C  (Pi of the Sky)
  20070520.382  8.880C  (Pi of the Sky)
  20070520.578    89  (Kiyotaka Kanai)
  20070520.621    89  (Kiyotaka Kanai)
  20070520.690    89  (Kiyotaka Kanai)
  20070520.710   90C  (Kazuyoshi Kanatsu)
  20070520.745  8.86V  (Kazuhiro Nakajima)
  20070520.746    89  (Kiyotaka Kanai)
  20070520.748  8.11Rc  (Kazuhiro Nakajima)
  20070520.749  9.56B  (Kazuhiro Nakajima)
  20070520.751    88  (A. Kamiya)
  20070520.767  8.91y  (Kazuhiro Nakajima)
  20070522.149  8.837C  (Pi of the Sky)
  20070522.612    89  (Kiyotaka Kanai)
  20070522.678    89  (Kiyotaka Kanai)
  20070523.706  8.80V  (Kazuhiro Nakajima)
  20070523.712  8.10Rc  (Kazuhiro Nakajima)
  20070523.715  9.49B  (Kazuhiro Nakajima)
  20070523.740  8.86y  (Kazuhiro Nakajima)
  20070524.147  8.776C  (Pi of the Sky)
  20070524.381  8.747C  (Pi of the Sky)
  20070525.133  8.697C  (Pi of the Sky)
  20070525.143  8.691C  (Pi of the Sky)
  20070525.379  8.716C  (Pi of the Sky)
  20070525.757    89  (Kenji Hirosawa)
  20070525.769    89  (Kiyotaka Kanai)
  20070526.139  8.743C  (Pi of the Sky)
  20070526.567    88  (Kiyotaka Kanai)
  20070526.592    89  (Kiyotaka Kanai)
  20070526.608  8.82V  (Kazuhiro Nakajima)
  20070526.609  8.10Rc  (Kazuhiro Nakajima)
  20070526.611  9.56B  (Kazuhiro Nakajima)
  20070526.635    87  (A. Kamiya)
  20070526.635    89  (Kiyotaka Kanai)
  20070526.735    87  (Kenji Hirosawa)
  20070527.377  8.748C  (Pi of the Sky)
  20070527.560    89  (Kiyotaka Kanai)
  20070527.617    88  (Kiyotaka Kanai)
  20070527.665    88  (Kiyotaka Kanai)
  20070527.757    89  (Kiyotaka Kanai)
  20070530.126  8.698C  (Pi of the Sky)
  20070530.378  8.762C  (Pi of the Sky)
  20070531.567  8.70V  (Kazuhiro Nakajima)
  20070531.572  8.03Rc  (Kazuhiro Nakajima)
  20070531.574  9.38B  (Kazuhiro Nakajima)
  20070531.633  8.81y  (Kazuhiro Nakajima)
  20070605.133  8.650C  (Pi of the Sky)
  20070606.133  8.580C  (Pi of the Sky)
  20070606.596  8.58V  (Kazuhiro Nakajima)
  20070606.601  7.91Rc  (Kazuhiro Nakajima)
  20070606.605  9.28B  (Kazuhiro Nakajima)
  20070606.636  8.72y  (Kazuhiro Nakajima)
  20070607.133  8.607C  (Pi of the Sky)
  20070607.374  8.672C  (Pi of the Sky)
  20070607.637  8.57V  (Kazuhiro Nakajima)
  20070607.640  7.90Rc  (Kazuhiro Nakajima)
  20070607.646  9.29B  (Kazuhiro Nakajima)
  20070607.657  8.72y  (Kazuhiro Nakajima)
  20070608.134  8.555C  (Pi of the Sky)
  20070608.991    87  (Wolfgang Kriebel)
  20070611.510    86  (Kiyotaka Kanai)
  20070611.538    86  (Kiyotaka Kanai)
  20070611.619    86  (Kiyotaka Kanai)
  20070612.531    86  (Kiyotaka Kanai)
  20070612.548  8.50V  (Kazuhiro Nakajima)
  20070612.552  7.84Rc  (Kazuhiro Nakajima)
  20070612.553  9.19B  (Kazuhiro Nakajima)
  20070612.571    86  (Kiyotaka Kanai)
  20070612.613    86  (Kiyotaka Kanai)
  20070615.503    85  (Kiyotaka Kanai)
  20070615.551    85  (Kiyotaka Kanai)
  20070615.685    85  (Kiyotaka Kanai)
  20070615.726    85  (A. Kamiya)
  20070616.135  8.507C  (Pi of the Sky)
  20070616.958    86  (Wolfgang Kriebel)
  20070617.373  8.488C  (Pi of the Sky)
  20070618.155  8.508C  (Pi of the Sky)
  20070619.530  8.45V  (Kazuhiro Nakajima)
  20070619.536  7.80Rc  (Kazuhiro Nakajima)
  20070619.540  9.13B  (Kazuhiro Nakajima)
  20070619.549  8.55y  (Kazuhiro Nakajima)
  20070619.969    85  (Wolfgang Kriebel)
  20070620.628  8.47V  (Kazuhiro Nakajima)
  20070620.629  7.81Rc  (Kazuhiro Nakajima)
  20070620.640  9.15B  (Kazuhiro Nakajima)
  20070621.135  8.540C  (Pi of the Sky)
  20070621.373  8.440C  (Pi of the Sky)
  20070621.966    83  (Wolfgang Kriebel)
  20070622.135  8.458C  (Pi of the Sky)
  20070622.383  8.466C  (Pi of the Sky)
  20070623.133  8.474C  (Pi of the Sky)
  20070623.944    84  (Wolfgang Kriebel)
  20070626.133  8.246C  (Pi of the Sky)
  20070626.526  8.24V  (Kazuhiro Nakajima)
  20070626.529  7.60Rc  (Kazuhiro Nakajima)
  20070626.536  9.00B  (Kazuhiro Nakajima)
  20070626.568  8.39y  (Kazuhiro Nakajima)
  20070627.131  8.127C  (Pi of the Sky)
  20070629.600    78  (Kiyotaka Kanai)
  20070630.524  7.52V  (Kazuhiro Nakajima)
  20070630.531  7.04Rc  (Kazuhiro Nakajima)
  20070630.534  8.30B  (Kazuhiro Nakajima)
  20070630.540  7.65y  (Kazuhiro Nakajima)
  20070630.901    76  (Wolfgang Kriebel)
  20070701.653  7.40V  (Kazuhiro Nakajima)
  20070701.667  6.91Rc  (Kazuhiro Nakajima)
  20070702.521    74  (A. Kamiya)
  20070702.542  7.57y  (Kazuhiro Nakajima)
  20070702.551  7.34V  (Kazuhiro Nakajima)
  20070702.564  6.76Rc  (Kazuhiro Nakajima)
  20070702.566  8.00B  (Kazuhiro Nakajima)
  20070703.129  7.443C  (Pi of the Sky)
  20070704.134  7.416C  (Pi of the Sky)
  20070705.560    71  (A. Kamiya)
  20070705.567  7.27V  (Kazuhiro Nakajima)
  20070705.572  6.69Rc  (Kazuhiro Nakajima)
  20070705.583  8.00B  (Kazuhiro Nakajima)
  20070705.585  7.39y  (Kazuhiro Nakajima)
  20070705.633  6.03Ic  (Hiroyuki Maehara)
  20070705.634  6.70Rc  (Hiroyuki Maehara)
  20070705.634  7.22V  (Hiroyuki Maehara)
  20070705.637  8.03B  (Hiroyuki Maehara)
  20070705.638  7.23y  (Hiroyuki Maehara)
  20070706.926    72  (Wolfgang Kriebel)
  20070707.567    71  (Hitomi Ishii)
  20070707.647    71  (Atsuko Takahashi)
  20070708.135  6.847C  (Pi of the Sky)
  20070708.344  6.75V  (Mike Linnolt)
  20070708.560    69  (Hitomi Ishii)
  20070708.601    69  (Atsuko Takahashi)
  20070709.135  6.668C  (Pi of the Sky)
  20070709.553    68  (Hitomi Ishii)
  20070709.560    67  (Atsuko Takahashi)
  20070709.895    66  (Jose Ripero)


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