[vsnet-newvar 1306] New Takamizawa variable (TmzV912)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV912)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV912).

TmzV912
= GSC4036.1440 014816.24 +630707.1 (2000.0) 10.22 1
= USNO1500.01846380 014816.304 +630706.69 (2000.0) 10.0 13.9
= IRAS01447+6252 014443.7 +625214 (1950.0)
     F12=1.00  F25=0.30  F60=0.40L F100=17.37L
     VAR=22 LRS=-1
  possibly I: oxygen-rich non-variable star without circumstellar shell
  or VII: variable star with more evolved C-rich circumstellar shell
  or VIa: non-variable star with relatively cold dust at large
       distance, may be carbon-rich
= 014816.1 +630709 (2000.0) IRAS01447+6252 0.973 0.290 0.400L 16.620L 22%
= 014816.1 +630709 (2000.0) SSC01447+6252 0.973 0.290 0.400L 16.620L
= 014816.3 +630707 (2000.0) MSX5C_G129.3046+00.9524 -17 -9 1 0 0 -2 V(%):-:-:1:-:-:-
= 014816.2 +630706 (2000.0) 1086 1.41 TYC4036.1440.1 plx=-63.0(40.0) (0.07 0.23)
= 014816.2 +630706 (2000.0) 1074 2.00 TYC2-4036.1440.1 (10.95 0.04) (13.30 0.23)
= 014826.6 +630658 (2000.0) DO24793

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 10.4-11.2p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV912        19950127.432  107p  Tmz.VSOLJ
TmzV912        19960922.656  105p  Tmz.VSOLJ
TmzV912        19970613.737  112p  Tmz.VSOLJ
TmzV912        19980116.420  105p  Tmz.VSOLJ
TmzV912        19980629.693  108p  Tmz.VSOLJ
TmzV912        19991128.440  104p  Tmz.VSOLJ
TmzV912        20000902.687  104p  Tmz.VSOLJ
TmzV912        20011023.613  106p  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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