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[vsnet-obs 18966] New Takamizawa variable (TmzV181)

New Takamizawa variable (TmzV181)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV181).

TmzV181
= GSC3722.779 040312.51 +561339.2 (2000.0) 12.56 1
= USNO1425.04860886 040312.452 +561339.01 (2000.0) 11.6 16.3
= IRAS03592+5605 035914.0 +560526 (1950.0)
    F12=0.69  F25=0.28  F60=0.40L F100=2.75L
    VAR=40 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
= 040312.4 +561339 (2000.0) CS599 - - 10.5 -
= 040314.2 +561342 (2000.0) IRAS03592+5605 0.717 0.269 0.400L 2.656L 40%
= 040314.2 +561342 (2000.0) SSC03592+5605 0.717 0.269 0.400L 2.656L
= 040312.0 +561259 (2000.0) C(Buscombe) V=12.4 - -

  Takamizawa's comment:

  The star may be a semiregular variable  with  a renge of 12.8-14.5p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV181        941108.549  145p  Tmz.VSOLJ
TmzV181        950127.497  128p  Tmz.VSOLJ
TmzV181        960111.431  130p  Tmz.VSOLJ
TmzV181        970802.715  132p  Tmz.VSOLJ
TmzV181        971010.696  138p  Tmz.VSOLJ
TmzV181        971123.518  134p  Tmz.VSOLJ
TmzV181        971221.449  130p  Tmz.VSOLJ
TmzV181        971221.472  130p  Tmz.VSOLJ
TmzV181        980116.455  132p  Tmz.VSOLJ
TmzV181        980820.699  130p  Tmz.VSOLJ
TmzV181        980823.706  131p  Tmz.VSOLJ
TmzV181        981024.551  133p  Tmz.VSOLJ
TmzV181        990109.489  131p  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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