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[vsnet-obs 18497] New Takamizawa variable (TmzV121)

New Takamizawa variable (TmzV121)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV121).

TmzV121
= GSC4082.838 043517.53 +621623.9 (2000.0) 13.63 1
= USNO1500.03811750 043517.542 +621623.95 (2000.0)  9.5 20.5
= IRAS04307+6210 043046.0 +621011 (1950.0)
    F12=251.14  F25=91.18  F60=17.37  F100=6.31 
    VAR=99 LRS=45
    blue, 11micron (SiC) emission, strength=5
    II: variable star with 'young' O-rich circumstellar shell
= 043517.4 +621622 (2000.0) IRAS04307+6210 251.700 91.960 17.370 6.602 99% 3(LRS)
= 043517.4 +621622 (2000.0) SSC04307+6210 251.700 91.960 17.370 6.602
= 043520.5 +621622 (2000.0) RAFGL595
= 043520.5 +621623 (2000.0) TMSS+60144
= 043530.0 +621559 (2000.0) C(Buscombe) - - -
= 043507.5 +621642 (2000.0) DO28389

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with a range of 12.5-14.2p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV121        950127.514  141p  Tmz.VSOLJ
TmzV121        951128.592  136p  Tmz.VSOLJ
TmzV121        971123.579  137p  Tmz.VSOLJ
TmzV121        971231.580  138p  Tmz.VSOLJ
TmzV121        980318.457  125p  Tmz.VSOLJ
TmzV121        980820.715  133p  Tmz.VSOLJ
TmzV121        981218.581  142p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       Inst.: 10cmR F4 twin patrol cameras  T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <GHA07243@nifty.ne.jp>

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