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[vsnet-obs 19222] New Takamizawa variable (TmzV226)

New Takamizawa variable (TmzV226)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV226).

TmzV226
= GSC4088.605 052243.69 +641908.0 (2000.0) 11.36 1
= USNO1500.04214901 052243.713 +641908.34 (2000.0) 11.2 14.2
= IRAS05178+6416 051751.4 +641614 (1950.0)
    F12=1.58  F25=0.63  F60=0.40L F100=1.20L
    VAR= 6 LRS=-1
 possibly II: variable star with 'young' O-rich circumstellar shell
 or VII: variable star with more evolved C-rich circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 052240.1 +641904 (2000.0) FSC05178+6416 1.528 0.623 0.217L 1.737L
= 052241.7 +641906 (2000.0) IRAS05178+6416 1.517 0.634 0.400L 1.211L 6%
= 052241.7 +641906 (2000.0) SSC05178+6416 1.517 0.634 0.400L 1.211L
= 052243.7 +641907 (2000.0) 1095E 1.66 TYC4088.605.1 plx=1.3(56.5) (0.12 0.64)

  Takamizawa's comment:

  The star may be a semiregurar variable  with  a range of 10.8-12.9p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV226        950127.514  113p  Tmz.VSOLJ
TmzV226        971123.579  129p  Tmz.VSOLJ
TmzV226        951128.592  123p  Tmz.VSOLJ
TmzV226        971203.717  123p  Tmz.VSOLJ
TmzV226        971221.501  120p  Tmz.VSOLJ
TmzV226        980302.431  111p  Tmz.VSOLJ
TmzV226        980318.438  110p  Tmz.VSOLJ
TmzV226        980820.715  110p  Tmz.VSOLJ
TmzV226        981024.645  121p  Tmz.VSOLJ
TmzV226        981218.581  120p  Tmz.VSOLJ
TmzV226        990111.539  113p  Tmz.VSOLJ
TmzV226        990204.394  108p  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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