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[vsnet-obs 19791] New Takamizawa variable (TmzV288)

New Takamizawa variable (TmzV288)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV288).

TmzV288
= GSC764.175 072744.11 +091903.5 (2000.0) 11.64 6
= USNO0975.05220728 072744.132 +091903.42 (2000.0) 10.6 13.8
= IRAS07249+0925 072459.7 +092515 (1950.0)
    F12=3.98  F25=2.51  F60=0.44  F100=1.00L
    VAR=21 LRS=-1
    IIIa: variable star with more evolved O-rich c.s. shell
= 072743.0 +091906 (2000.0) FSC07249+0925 3.867 2.383 0.417 0.805L
= 072743.6 +091906 (2000.0) IRAS07249+0925 3.963 2.530 0.423 1.000L 21%
= 072743.6 +091906 (2000.0) SSC07249+0925 3.963 2.530 0.423 1.000L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.1-12.5p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV288        940306.451  119p  Tmz.VSOLJ
TmzV288        950220.486  121p  Tmz.VSOLJ
TmzV288        951025.756  121p  Tmz.VSOLJ
TmzV288        951222.667  119p  Tmz.VSOLJ
TmzV288        961015.812  123p  Tmz.VSOLJ
TmzV288        961206.691  124p  Tmz.VSOLJ
TmzV288        970830.794  121p  Tmz.VSOLJ
TmzV288        970929.784  120p  Tmz.VSOLJ
TmzV288        971103.787  120p  Tmz.VSOLJ
TmzV288        971204.729  118p  Tmz.VSOLJ
TmzV288        971224.658  111p  Tmz.VSOLJ
TmzV288        980121.572  111p  Tmz.VSOLJ
TmzV288        980217.522  120p  Tmz.VSOLJ
TmzV288        980919.769  121p  Tmz.VSOLJ
TmzV288        981115.761  125p  Tmz.VSOLJ
TmzV288        981212.644  115p  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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