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[vsnet-obs 19015] New Takamizawa variable (TmzV186)

New Takamizawa variable (TmzV186)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV186).

TmzV186
= GSC3722.392 040427.77 +555526.8 (2000.0) 10.92 1
= USNO1425.04884794 040427.760 +555526.70 (2000.0)  9.4 13.4
= IRAS04004+5547 040028.0 +554713 (1950.0)
    F12=10.96  F25=6.31  F60=0.91  F100=12.02L
    VAR= 5 LRS=-1
    IIIa: variable star with more evolved O-rich c.s. shell
= 040425.5 +555547 (2000.0) TMSS+60137
= 040427.5 +555524 (2000.0) IRAS04004+5547 10.720 6.450 0.931 12.150L 5%
= 040427.5 +555524 (2000.0) SSC04004+5547 10.720 6.450 0.931 12.150L
= 040433.6 +555437 (2000.0) DO27881

  Takamizawa's comment:

  The star may be a semiregular variable  with  a renge of 10.5-11.4p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV186        940910.701  113p  Tmz.VSOLJ
TmzV186        941108.549  114p  Tmz.VSOLJ
TmzV186        950823.720  109p  Tmz.VSOLJ
TmzV186        951127.554  108p  Tmz.VSOLJ
TmzV186        970802.715  113p  Tmz.VSOLJ
TmzV186        971010.696  109p  Tmz.VSOLJ
TmzV186        971123.526  116p  Tmz.VSOLJ
TmzV186        971221.449  113p  Tmz.VSOLJ
TmzV186        980820.699  109p  Tmz.VSOLJ
TmzV186        990109.498  105p  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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