[vsnet-newvar 1312] New Takamizawa variable (TmzV918)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV918)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV918).

TmzV918
= GSC4042.836 012435.50 +654100.2 (2000.0) 11.31 1
= GSC4042.836 012435.58 +654100.9 (2000.0) 11.55 1
= USNO1500.01429702 012435.538 +654100.94 (2000.0) 11.1 14.6
= IRAS01211+6525 012110.4 +652525 (1950.0)
     F12=0.91  F25=0.28  F60=0.40L F100=2.51L
     VAR= 4 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
= 012436.0 +654101 (2000.0) MSX5C_G126.3406+03.0317 -19 -10 1 0 0 -2 V(%):-:-:2:-:-:-
= 012436.0 +654102 (2000.0) IRAS01211+6525 0.933 0.273 0.400L 2.619L 4%
= 012436.0 +654102 (2000.0) SSC01211+6525 0.933 0.273 0.400L 2.619L
= 012424.3 +654020 (2000.0) DO24290

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.1-12.1p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV918        19970613.737  119p  Tmz.VSOLJ
TmzV918        19980116.420  120p  Tmz.VSOLJ
TmzV918        19980629.693  117p  Tmz.VSOLJ
TmzV918        19991128.440  121p  Tmz.VSOLJ
TmzV918        20000902.687  111p  Tmz.VSOLJ
TmzV918        20011023.613  117p  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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