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[vsnet-newvar 1162] New Takamizawa variable (TmzV848)

New Takamizawa variable (TmzV848)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV848).

TmzV848
= GSC2844.1862 023406.07 +433136.3 (2000.0) 12.08 1
= USNO1275.01596472 023406.074 +433136.22 (2000.0) 11.5 14.2
= IRAS02308+4318 023053.6 +431826 (1950.0)
     F12=2.51  F25=1.20  F60=0.40L F100=1.00L
     VAR= 0 LRS=-1
  possibly II: variable star with 'young' O-rich circumstellar shell
  or VII: variable star with more evolved C-rich circumstellar shell
= 023404.9 +433130 (2000.0) FSC02308+4318 2.538 1.228 0.257L 0.579L
= 023406.3 +433134 (2000.0) IRAS02308+4318 2.586 1.223 0.400L 1.000L 0%
= 023406.3 +433134 (2000.0) SSC02308+4318 2.586 1.223 0.400L 1.000L
= 023406.5 +433125 (2000.0) DO25900

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.5-12.4p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV848        19941102.661  120p  Tmz.VSOLJ
TmzV848        19950127.431  120p  Tmz.VSOLJ
TmzV848        19950320.429  117p  Tmz.VSOLJ
TmzV848        19960922.666  122p  Tmz.VSOLJ
TmzV848        19970613.728  124p  Tmz.VSOLJ
TmzV848        19980116.413  116p  Tmz.VSOLJ
TmzV848        19980629.701  115p  Tmz.VSOLJ
TmzV848        19991128.448  121p  Tmz.VSOLJ
TmzV848        20000902.669  122p  Tmz.VSOLJ
TmzV848        20011023.597  123p  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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