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[vsnet-obs 19348] New Takamizawa variable (TmzV240)

New Takamizawa variable (TmzV240)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV240).

TmzV240
= GSC3758.2373 054744.46 +563233.2 (2000.0) 11.74 1
= USNO1425.06335209 054744.460 +563233.13 (2000.0) 10.8 15.3
= IRAS05434+5631 054329.5 +563129 (1950.0)
    F12=10.96  F25=9.12  F60=1.20  F100=1.00L
    VAR=12 LRS=27
    blue, 10micron (silicate) emission, strength=7
    IIIa: variable star with more evolved O-rich c.s. shell
= 054744.0 +563231 (2000.0) IRAS05434+5631 11.420 8.833 1.218 1.000L 12% 2(LRS)
= 054744.0 +563231 (2000.0) SSC05434+5631 11.420 8.833 1.218 1.000L
= 054744.4 +563232 (2000.0) LMS50 M7 13.5
= 054744.6 +563232 (2000.0) FSC05435+5631 11.090 8.361 1.030 1.764L

  Takamizawa's comment:

  The star may be a semiregular variable  with  a range of 11.6-12.9p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV240        950127.468  127p  Tmz.VSOLJ
TmzV240        951219.553  123p  Tmz.VSOLJ
TmzV240        970811.719  128p  Tmz.VSOLJ
TmzV240        971109.684  129p  Tmz.VSOLJ
TmzV240        971123.588  127p  Tmz.VSOLJ
TmzV240        971203.716  125p  Tmz.VSOLJ
TmzV240        971221.501  122p  Tmz.VSOLJ
TmzV240        971231.597  124p  Tmz.VSOLJ
TmzV240        980302.440  119p  Tmz.VSOLJ
TmzV240        980318.443  120p  Tmz.VSOLJ
TmzV240        981024.645  119p  Tmz.VSOLJ
TmzV240        981218.623  119p  Tmz.VSOLJ
TmzV240        990204.438  116p  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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