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[vsnet-obs 19821] New Takamizawa variable (TmzV292)

New Takamizawa variable (TmzV292)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV292).

TmzV292
= USNO0900.04969720 072646.834 +022557.24 (2000.0) 10.6 17.5
= IRAS07241+0232 072409.6 +023205 (1950.0)
    F12=1.90  F25=0.52  F60=0.40L F100=1.00L
    VAR=28 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 072645.9 +022559 (2000.0) IRAS07241+0232 1.907 0.513 0.400L 1.000L 28%
= 072645.9 +022559 (2000.0) SSC07241+0232 1.907 0.513 0.400L 1.000L
= 072646.6 +022554 (2000.0) CS1710 - 11 - -

  Takamizawa's comment:

  The star may be an irregular variable with a range of 12.3-13.1p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV292        940306.451  129p  Tmz.VSOLJ
TmzV292        941111.747  125p  Tmz.VSOLJ
TmzV292        950220.486  130p  Tmz.VSOLJ
TmzV292        951025.748  127p  Tmz.VSOLJ
TmzV292        951219.605  128p  Tmz.VSOLJ
TmzV292        961021.785  129p  Tmz.VSOLJ
TmzV292        961206.691  131p  Tmz.VSOLJ
TmzV292        971103.787  128p  Tmz.VSOLJ
TmzV292        971204.711  129p  Tmz.VSOLJ
TmzV292        971224.649  127p  Tmz.VSOLJ
TmzV292        980121.564  127p  Tmz.VSOLJ
TmzV292        980217.513  129p  Tmz.VSOLJ
TmzV292        980325.469  131p  Tmz.VSOLJ
TmzV292        980919.769  123p  Tmz.VSOLJ
TmzV292        981115.752  124p  Tmz.VSOLJ
TmzV292        981212.644  127p  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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