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[vsnet-alert 718] ER UMa has changed its outburst property?

   Following observations extracted from vsnet-obs reports seem to indicate
ER UMa never faded to its quiescence in January.  The light curve in late
Januanry to early February looks like a standstill or an extended super-
outburst accompanied by a brightening around Feb. 1.  Previous superoutbursts
of ER UMa usually last 19 days (with a very regular duty cycle ~0.4 to its
supercycle 43 days).  Has its outburst property changed?  Please keep a close
eye on this particuliar dwarf nova, the best known and the brightest member
among its allies (ER UMa stars or RZ LMi stars -- cf.
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/eruma.html).

    YYMMDD(UT)   mag  code
    970101.051   133  POY
    970101.938   135  POY
    970103.051   138  POY
    970103.892   125  JEN
    970106.866   125  JEN
    970107.869   124  PIE
    970109.633   126  Wnt
    970109.947   131  JEN
    970111.849   130  PIE
    970111.948   130  JEN
    970112.605  13.27V  Oud
    970113.594  13.25V  Oud
    970113.840   132  PIE
    970114.900   132  PIE
    970114.965   135  POY
    970114.994   127  JEN
    970115.633  13.43V  Oud
    970115.869   131  PIE
    970116.830   133  PIE
    970117.783   136  Wnt
    970117.901   135  POY
    970117.926   138  JEN
    970119.871  13.55V  Oud
    970125.842   137  POY
    970126.792   135  BMU
    970126.817   137  POY
    970128.849   135  POY
    970131.773   132  Wnt
    970201.780   130  PIE
    970201.797   135  JEN
    970201.823  13.35V  Oud
    970201.887   135  BMU
    970202.917   135  POY
    970203.646   135  Wnt
    970205.960   142  PIE
    970206.860   151: PIE
    970207.860   148  POY

Regards,
Taichi Kato

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