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[vsnet-obs 19032] New Takamizawa variable (TmzV190)

New Takamizawa variable (TmzV190)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV190).

TmzV190
= GSC3337.444 042314.75 +491233.3 (2000.0) 13.36 1
= GSC3337.444 042314.76 +491234.5 (2000.0) 12.39 1
= USNO1350.04637873 042314.770 +491233.65 (2000.0) 12.4 16.6
= IRAS04195+4905 041931.0 +490536 (1950.0)
    F12=1.32  F25=0.40  F60=0.40L F100=3.02L
    VAR=11 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or VII: variable star with more evolved C-rich circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 042314.8 +491233 (2000.0) IRAS04195+4905 1.361 0.401 0.400L 2.972L 11%
= 042314.8 +491233 (2000.0) SSC04195+4905 1.361 0.401 0.400L 2.972L

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with  a renge of 13.0-13.7p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV190        940910.701  133p  Tmz.VSOLJ
TmzV190        941108.549  133p  Tmz.VSOLJ
TmzV190        950823.720  134p  Tmz.VSOLJ
TmzV190        951127.554  132p  Tmz.VSOLJ
TmzV190        970714.728  134p  Tmz.VSOLJ
TmzV190        970802.707  132p  Tmz.VSOLJ
TmzV190        971010.696  135p  Tmz.VSOLJ
TmzV190        971123.526  134p  Tmz.VSOLJ
TmzV190        971221.456  131p  Tmz.VSOLJ
TmzV190        980820.706  130p  Tmz.VSOLJ
TmzV190        990109.498  137p  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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