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[vsnet-obs 20204] New Takamizawa variable (TmzV337)

New Takamizawa variable (TmzV337)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV337).

TmzV337
= USNO0525.18608121 162052.012 -315322.50 (2000.0) 16.7 15.7
  (The position strongly suggests this identification.  However, the USNO
   color is unusual.  Takamizawa's astrometry: 162051.9 -315322).
= 162052.1 -315324 (2000.0) FSC16176-3146 0.354 0.195L 0.569L 5.890L
= IRAS16176-3146 161738.3 -314605 (1950.0)
    F12=0.40  F25=0.44L F60=0.44L F100=15.84L
    VAR=-1 LRS=-1
= 162049.5 -315311 (2000.0) IRAS16176-3146 0.392 0.451L 0.420L 15.660L -1%
= 162049.5 -315311 (2000.0) SSC16176-3146 0.392 0.451L 0.420L 15.660L

  Takamizawa's comment:

  The star may be a Mira-type variable with a range of 11.3-<14.7p.
The star is visible at mag ~18.5 on Real-Sky CD.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV337        940315.721  <147p  Tmz.VSOLJ
TmzV337        940411.761  135p  Tmz.VSOLJ
TmzV337        940506.661  127p  Tmz.VSOLJ
TmzV337        940703.501  124p  Tmz.VSOLJ
TmzV337        960413.722  <147p  Tmz.VSOLJ
TmzV337        960619.519  119p  Tmz.VSOLJ
TmzV337        960721.507  113p  Tmz.VSOLJ
TmzV337        970606.622  145p  Tmz.VSOLJ
TmzV337        980620.557  <147p  Tmz.VSOLJ
TmzV337        990313.767  119p  Tmz.VSOLJ
TmzV337        990414.708  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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