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[vsnet-obs 18770] New Takamizawa variable (TmzV145)

New Takamizawa variable (TmzV145)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV145).

TmzV145
= GSC2399.613 045210.07 +370327.8 (2000.0) 12.86 1
= USNO1200.02592029 045210.077 +370327.00 (2000.0) 12.7 16.5
= IRAS04488+3658 044848.3 +365829 (1950.0)
    F12=3.63  F25=1.58  F60=0.40L F100=12.02L
    VAR=20 LRS=-1
 possibly II: variable star with 'young' O-rich circumstellar shell
 or VII: variable star with more evolved C-rich circumstellar shell
= 045210.0 +370328 (2000.0) IRAS04488+3658 3.700 1.572 0.400L 11.960L 20%
= 045210.0 +370328 (2000.0) SSC04488+3658 3.700 1.572 0.400L 11.960L

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with a range of 13.3-14.5p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV145        940302.540  142p  Tmz.VSOLJ
TmzV145        940810.775  145p  Tmz.VSOLJ
TmzV145        941108.597  142p  Tmz.VSOLJ
TmzV145        941224.488  140p  Tmz.VSOLJ
TmzV145        950320.515  134p  Tmz.VSOLJ
TmzV145        950823.769  139p  Tmz.VSOLJ
TmzV145        951128.608  134p  Tmz.VSOLJ
TmzV145        960109.422  141p  Tmz.VSOLJ
TmzV145        960922.747  142p  Tmz.VSOLJ
TmzV145        961015.731  135p  Tmz.VSOLJ
TmzV145        961203.547  133p  Tmz.VSOLJ
TmzV145        970802.749  141p  Tmz.VSOLJ
TmzV145        971123.615  134p  Tmz.VSOLJ
TmzV145        980318.465  133p  Tmz.VSOLJ
TmzV145        980820.731  134p  Tmz.VSOLJ
TmzV145        981024.609  135p  Tmz.VSOLJ
TmzV145        981218.596  140p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       Inst.: 10cmR F4 twin patrol cameras  T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <GHA07243@nifty.ne.jp>

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