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[vsnet-newvar 389] New Takamizawa variable (TmzV749)

New Takamizawa variable (TmzV749)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV749).

TmzV749
= GSC7298.195 145650.51 -300534.1 (2000.0) 14.78 0
= USNO0525.15331486 145650.509 -300534.64 (2000.0) 11.9 15.5
= IRAS14538-2953 145349.8 -295329 (1950.0)
    F12=2.29  F25=1.32  F60=0.40L F100=1.10L
    VAR=31 LRS=-1
 possibly IIIa: variable star with more evolved O-rich c.s. shell
 or VII: variable star with more evolved C-rich circumstellar shell
= 145650.0 -300533 (2000.0) FSC14538-2953 2.189 1.300 0.228 1.816L
= 145650.1 -300531 (2000.0) IRAS14538-2953 2.208 1.326 0.400L 1.087L 31%
= 145650.1 -300531 (2000.0) SSC14538-2953 2.208 1.326 0.400L 1.087L

  Takamizawa's comment:

  The star may be a Mira-type variable with a range of 12.0-14.9p,
  and a period about 344days.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV749        19940506.613  120p  Tmz.VSOLJ
TmzV749        19950401.689  120p  Tmz.VSOLJ
TmzV749        19950601.491  147p  Tmz.VSOLJ
TmzV749        19960219.758  120p  Tmz.VSOLJ
TmzV749        19970606.570  140p  Tmz.VSOLJ
TmzV749        19980420.601  141p  Tmz.VSOLJ
TmzV749        19990511.609  138p  Tmz.VSOLJ
TmzV749        20000329.674  149p  Tmz.VSOLJ
TmzV749        20000428.622  120p  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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