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[vsnet-newvar 195] New Takamizawa variable (TmzV653)

New Takamizawa variable (TmzV653)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV653).

TmzV653
= GSC3972.1490 215010.31 +555456.3 (2000.0) 12.25 1
= USNO1425.12529356 215010.322 +555456.47 (2000.0) 11.8 16.2
= IRAS21484+5540 214829.8 +554052 (1950.0)
    F12=0.76  F25=0.25L F60=2.29L F100=25.11L
    VAR=-1 LRS=-1
 possibly I: oxygen-rich non-variable star without 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
= 215010.4 +555455 (2000.0) IRAS21484+5540 0.769 0.250L 2.384L 24.470L -1%
= 215010.4 +555455 (2000.0) SSC21484+5540 0.769 0.250L 2.384L 24.470L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.3-13.0p.

object         YYYYMMDD(UT)   mag  code
TmzV653        19940903.562  127p  Tmz.VSOLJ
TmzV653        19970824.567  126p  Tmz.VSOLJ
TmzV653        19970827.540  125p  Tmz.VSOLJ
TmzV653        19971218.437  130p  Tmz.VSOLJ
TmzV653        19980823.562  123p  Tmz.VSOLJ
TmzV653        19980916.530  124p  Tmz.VSOLJ
TmzV653        19990709.574  126p  Tmz.VSOLJ
TmzV653        19990807.594  129p  Tmz.VSOLJ
TmzV653        19991226.462  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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