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[vsnet-obs 19480] New Takamizawa variable (TmzV252)

New Takamizawa variable (TmzV252)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV252).  This object is most likely identical with the infrared
suspected variable NSV16894.

TmzV252
= GSC2940.1646 063242.17 +431713.4 (2000.0) 11.31 1
= USNO1275.06443816 063242.202 +431713.09 (2000.0) 11.3 16.6
= IRAS06291+4319 062906.1 +431928 (1950.0)
    F12=109.62  F25=52.47  F60=8.31  F100=1.90 
    VAR=54 LRS=43
    blue, 11micron (SiC) emission, strength=3
    II: variable star with 'young' O-rich circumstellar shell
= 063241.9 +431715 (2000.0) RAFGL954
= 063242.1 +431713 (2000.0) IRAS06291+4319 106.500 50.650 8.647 1.985 54% 4(LRS)
= 063242.1 +431713 (2000.0) SSC06291+4319 106.500 50.650 8.647 1.985
= 063242.2 +431713 (2000.0) CS1291 - - - -
= 063243.1 +431711 (2000.0) FSC06291+4319 103.900 48.890 8.820 2.046
= 063242.0 +431713 (2000.0) NSV16894 ? 3.3 5.0 H C

  Takamizawa's comment:

  The star may be an iregular variable  with  a range of 12.0-12.9p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV252        950203.476  129p  Tmz.VSOLJ
TmzV252        951219.564  127p  Tmz.VSOLJ
TmzV252        970811.762  120p  Tmz.VSOLJ
TmzV252        970901.754  120p  Tmz.VSOLJ
TmzV252        971109.675  120p  Tmz.VSOLJ
TmzV252        980119.463  120p  Tmz.VSOLJ
TmzV252        980318.507  121p  Tmz.VSOLJ
TmzV252        980820.749  123p  Tmz.VSOLJ
TmzV252        981218.631  122p  Tmz.VSOLJ
TmzV252        990204.446  125p  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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