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[vsnet-obs 18938] New Takamizawa variable (TmzV177)

New Takamizawa variable (TmzV177)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV177).

TmzV177
= GSC3729.639 034840.24 +581711.8 (2000.0) 12.83 1
= USNO1425.04623222 034840.244 +581711.78 (2000.0) 11.6 16.5
= IRAS03445+5807 034435.9 +580758 (1950.0)
    F12=2.75  F25=1.44  F60=0.40L F100=2.51L
    VAR= 2 LRS=-1
 possibly IIIa: variable star with more evolved O-rich c.s. shell
 or VII: variable star with more evolved C-rich circumstellar shell
= 034839.6 +581708 (2000.0) IRAS03445+5807 2.708 1.395 0.400L 2.613L 2%
= 034839.6 +581708 (2000.0) SSC03445+5807 2.708 1.395 0.400L 2.613L

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with  a renge of 12.4-13.8p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV177        941108.549  137p  Tmz.VSOLJ
TmzV177        950127.497  125p  Tmz.VSOLJ
TmzV177        960111.431  124p  Tmz.VSOLJ
TmzV177        970714.711  134p  Tmz.VSOLJ
TmzV177        970802.715  135p  Tmz.VSOLJ
TmzV177        971010.696  126p  Tmz.VSOLJ
TmzV177        971101.613  125p  Tmz.VSOLJ
TmzV177        971123.518  127p  Tmz.VSOLJ
TmzV177        971221.449  126p  Tmz.VSOLJ
TmzV177        980116.428  127p  Tmz.VSOLJ
TmzV177        980703.655  134p  Tmz.VSOLJ
TmzV177        980823.681  134p  Tmz.VSOLJ
TmzV177        990109.489  138p  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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