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[vsnet-newvar 1170] New Takamizawa variable (TmzV855)

New Takamizawa variable (TmzV855)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV855).

TmzV855
= GSC3685.962 020715.73 +541330.6 (2000.0) 12.16 1
= USNO1425.03000180 020715.751 +541331.06 (2000.0) 10.9 15.3
= IRAS02038+5359 020353.4 +535910 (1950.0)
     F12=1.58  F25=0.76  F60=0.40L F100=1.00L
     VAR= 7 LRS=-1
  possibly II: variable star with 'young' O-rich 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
= 020715.1 +541325 (2000.0) IRAS02038+5359 1.517 0.746 0.400L 1.000L 7%
= 020715.1 +541325 (2000.0) SSC02038+5359 1.517 0.746 0.400L 1.000L
= 020711.8 +541438 (2000.0) DO25292

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.9-13.2p.
  (TmzV855 is a component of a close pair; GSC3685.162 star is present in
  the NNE direction).

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV855        19950127.424  127p  Tmz.VSOLJ
TmzV855        19960922.666  131p  Tmz.VSOLJ
TmzV855        19970613.728  124p  Tmz.VSOLJ
TmzV855        19980116.413  131p  Tmz.VSOLJ
TmzV855        19980629.701  122p  Tmz.VSOLJ
TmzV855        19991128.448  130p  Tmz.VSOLJ
TmzV855        20000902.678  119p  Tmz.VSOLJ
TmzV855        20011023.605  126p  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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