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[vsnet-obs 20285] New Takamizawa variable (TmzV353)

New Takamizawa variable (TmzV353)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV353).

TmzV353
= GSC6539.1929 074000.82 -224335.4 (2000.0) 14.69 0
= USNO0600.04086998 074000.842 -224335.90 (2000.0) 10.9 16.7
= IRAS07378-2236 073752.3 -223635 (1950.0)
    F12=2.09  F25=0.58  F60=0.40L F100=1.58L
    VAR= 0 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 074000.6 -224334 (2000.0) IRAS07378-2236 2.174 0.586 0.400L 1.654L 0%
= 074000.6 -224334 (2000.0) SSC07378-2236 2.174 0.586 0.400L 1.654L
= 074000.7 -224335 (2000.0) CS1826 - 10.2 8 -
= 074000.0 -224259 (2000.0) C(Buscombe) V=10.4 - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.6-12.7p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV353        940314.501  125p  Tmz.VSOLJ
TmzV353        941111.731  122p  Tmz.VSOLJ
TmzV353        950203.546  120p  Tmz.VSOLJ
TmzV353        950927.799  115p  Tmz.VSOLJ
TmzV353        951118.744  123p  Tmz.VSOLJ
TmzV353        951222.685  118p  Tmz.VSOLJ
TmzV353        961021.768  116p  Tmz.VSOLJ
TmzV353        961206.707  128p  Tmz.VSOLJ
TmzV353        970103.622  122p  Tmz.VSOLJ
TmzV353        970227.485  126p  Tmz.VSOLJ
TmzV353        971013.798  120p  Tmz.VSOLJ
TmzV353        971103.802  121p  Tmz.VSOLJ
TmzV353        971204.695  122p  Tmz.VSOLJ
TmzV353        971224.633  122p  Tmz.VSOLJ
TmzV353        980121.549  122p  Tmz.VSOLJ
TmzV353        980217.497  119p  Tmz.VSOLJ
TmzV353        980325.453  119p  Tmz.VSOLJ
TmzV353        981115.737  126p  Tmz.VSOLJ
TmzV353        981212.628  127p  Tmz.VSOLJ
TmzV353        990208.557  120p  Tmz.VSOLJ
TmzV353        990404.438  118p  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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