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[vsnet-obs 20544] New Takamizawa variable (TmzV362)

New Takamizawa variable (TmzV362)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV362).  The star is almost certainly identical with the infrared
suspected variable NSV 17608.

TmzV362
= USNO0600.04442252 074748.290 -295344.39 (2000.0) 12.9 19.6
= IRAS07458-2946 074549.8 -294618 (1950.0)
    F12=4.36  F25=1.10  F60=0.40L F100=2.29L
    VAR=63 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
= 074749.2 -295348 (2000.0) IRAS07458-2946 4.336 1.140 0.400L 2.306L 63%
= 074749.2 -295348 (2000.0) SSC07458-2946 4.336 1.140 0.400L 2.306L
= 074748.2 -295344 (2000.0) NSV17608 VAR: 5.02 5.12 K C
= 074747.9 -295159 (2000.0) C(Buscombe) V=15.2 - -
= 074746.4 -295306 (2000.0) CS1884 - 15.2 - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.9-14.1p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV362        941111.731  141p  Tmz.VSOLJ
TmzV362        941203.698  140p  Tmz.VSOLJ
TmzV362        950203.535  143p  Tmz.VSOLJ
TmzV362        951222.694  131p  Tmz.VSOLJ
TmzV362        961021.768  139p  Tmz.VSOLJ
TmzV362        970103.631  138p  Tmz.VSOLJ
TmzV362        971013.798  137p  Tmz.VSOLJ
TmzV362        971103.810  134p  Tmz.VSOLJ
TmzV362        971204.695  136p  Tmz.VSOLJ
TmzV362        971224.633  136p  Tmz.VSOLJ
TmzV362        980121.549  135p  Tmz.VSOLJ
TmzV362        980217.497  133p  Tmz.VSOLJ
TmzV362        980325.454  137p  Tmz.VSOLJ
TmzV362        981115.737  130p  Tmz.VSOLJ
TmzV362        990404.438  129p  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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