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[vsnet-obs 18892] New Takamizawa variable (TmzV169)

New Takamizawa variable (TmzV169)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV169).

TmzV169
= GSC4327.1162 034015.56 +685435.3 (2000.0) 12.15 1
= USNO1575.01796718 034015.575 +685435.39 (2000.0) 10.4 14.1
= IRAS03353+6844 033521.1 +684451 (1950.0)
    F12=1.58  F25=0.63  F60=0.40L F100=1.58L
    VAR=59 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
= 034015.1 +685433 (2000.0) IRAS03353+6844 1.564 0.643 0.408L 1.635L 59%
= 034015.1 +685433 (2000.0) SSC03353+6844 1.564 0.643 0.408L 1.635L
= 034015.5 +685433 (2000.0) FSC03353+6844 1.597 0.628 0.260 3.313L

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with a range of 11.8-12.4p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV169        950127.497  124p  Tmz.VSOLJ
TmzV169        960111.431  122p  Tmz.VSOLJ
TmzV169        970714.711  123p  Tmz.VSOLJ
TmzV169        970802.715  122p  Tmz.VSOLJ
TmzV169        971101.613  123p  Tmz.VSOLJ
TmzV169        971123.522  123p  Tmz.VSOLJ
TmzV169        971221.449  122p  Tmz.VSOLJ
TmzV169        980116.428  122p  Tmz.VSOLJ
TmzV169        980820.699  122p  Tmz.VSOLJ
TmzV169        980823.681  122p  Tmz.VSOLJ
TmzV169        990109.489  118p  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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