[vsnet-newvar 1157] New Takamizawa variable (TmzV844)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV844)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV844).

TmzV844
= GSC2828.395 015320.72 +440741.9 (2000.0) 13.71 1
= GSC2828.395 015320.85 +440741.7 (2000.0) 13.54 1
= USNO1275.01141896 015320.791 +440741.72 (2000.0) 12.5 14.9
= IRAS01502+4352 015017.1 +435256 (1950.0)
     F12=0.58  F25=0.36  F60=0.40L F100=1.00L
     VAR=47 LRS=-1
  possibly IIIa: variable star with more evolved O-rich c.s. shell
  or VIb: variable star with relatively hot dust close to
       the star and relatively cold dust at large distance
       may be O-rich
  or VII: variable star with more evolved C-rich circumstellar shell
= 015320.0 +440737 (2000.0) FSC01502+4352 0.565 0.265 0.166L 0.975L
= 015321.0 +440741 (2000.0) IRAS01502+4352 0.578 0.350 0.400L 1.000L 47%
= 015321.0 +440741 (2000.0) SSC01502+4352 0.578 0.350 0.400L 1.000L

  Takamizawa's comment:

  The star may be a semiregular variable  with a range of 13.1-14.1p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV844        19941102.661  138p  Tmz.VSOLJ
TmzV844        19950127.431  139p  Tmz.VSOLJ
TmzV844        19950320.429  135p  Tmz.VSOLJ
TmzV844        19960922.666  136p  Tmz.VSOLJ
TmzV844        19970613.728  131p  Tmz.VSOLJ
TmzV844        19980116.413  137p  Tmz.VSOLJ
TmzV844        19980629.701  1384  Tmz.VSOLJ
TmzV844        19991128.448  137p  Tmz.VSOLJ
TmzV844        20000902.669  141p  Tmz.VSOLJ
TmzV844        20011023.597  136p  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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