[vsnet-newvar 1288] New Takamizawa variable (TmzV902)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV902)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV902).

TmzV902
= GSC4310.810 015304.44 +674600.6 (2000.0) 14.12 1
= USNO1575.01149510 015304.396 +674600.46 (2000.0) 12.4 16.9
= IRAS01492+6731 014915.6 +673114 (1950.0)
     F12=1.74  F25=1.10  F60=0.40L F100=10.00L
     VAR=23 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
= 015305.0 +674600 (2000.0) IRAS01492+6731 1.738 1.102 0.400L 10.110L 23%
= 015305.0 +674600 (2000.0) SSC01492+6731 1.738 1.102 0.400L 10.110L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.9-14.5p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV902        19950127.432  141p  Tmz.VSOLJ
TmzV902        19960922.656  144p  Tmz.VSOLJ
TmzV902        19970613.737  142p  Tmz.VSOLJ
TmzV902        19980116.420  140p  Tmz.VSOLJ
TmzV902        19980629.693  139p  Tmz.VSOLJ
TmzV902        19991128.440  145p  Tmz.VSOLJ
TmzV902        20000902.687  143p  Tmz.VSOLJ
TmzV902        20011023.613  142p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       SASS (Saku All Sky Survey)
       Inst.: 10cmR F4 twin patrol cameras and 25cm F2.8
       Baker-Schmidt camera T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <k-takamizawa@nifty.ne.jp>

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