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[vsnet-obs 20248] New Takamizawa variable (TmzV348)

New Takamizawa variable (TmzV348)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV348).

TmzV348
= USNO0675.04593340 073845.283 -220709.02 (2000.0) 11.9 14.6
= IRAS07366-2200 073636.0 -220015 (1950.0)
    F12=0.63  F25=0.23  F60=0.40L F100=1.90L
    VAR= 0 LRS=-1
 possibly II: variable star with 'young' O-rich 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
= 073845.0 -220709 (2000.0) IRAS07366-2200 0.651 0.223 0.400L 1.989L 0%
= 073845.0 -220709 (2000.0) SSC07366-2200 0.651 0.223 0.400L 1.989L
= 073847.9 -220600 (2000.0) M7(III)(Buscombe) - - -

  Takamizawa's comment:

  The star may be an irregular variable with a range of 13.2-13.9p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV348        940314.501  132p  Tmz.VSOLJ
TmzV348        941111.731  132p  Tmz.VSOLJ
TmzV348        950203.546  139p  Tmz.VSOLJ
TmzV348        950927.799  135p  Tmz.VSOLJ
TmzV348        951118.744  136p  Tmz.VSOLJ
TmzV348        951222.685  132p  Tmz.VSOLJ
TmzV348        961021.768  134p  Tmz.VSOLJ
TmzV348        961206.707  133p  Tmz.VSOLJ
TmzV348        970103.622  137p  Tmz.VSOLJ
TmzV348        970227.485  134p  Tmz.VSOLJ
TmzV348        971013.798  137p  Tmz.VSOLJ
TmzV348        971103.802  133p  Tmz.VSOLJ
TmzV348        971204.695  133p  Tmz.VSOLJ
TmzV348        971224.633  134p  Tmz.VSOLJ
TmzV348        980121.549  135p  Tmz.VSOLJ
TmzV348        980217.497  135p  Tmz.VSOLJ
TmzV348        980325.453  134p  Tmz.VSOLJ
TmzV348        981115.737  132p  Tmz.VSOLJ
TmzV348        981212.628  136p  Tmz.VSOLJ
TmzV348        990208.557  134p  Tmz.VSOLJ
TmzV348        990404.438  133p  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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