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[vsnet-newvar 286] New Takamizawa variable (TmzV730)

New Takamizawa variable (TmzV730)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV730).

TmzV730
= GSC3971.118 213703.01 +545540.9 (2000.0) 12.67 1
= USNO1425.12221016 213703.030 +545540.93 (2000.0) 11.4 15.8
= IRAS21354+5442 213525.0 +544207 (1950.0)
    F12=1.20  F25=0.36  F60=1.90L F100=22.90L
    VAR=23 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
= 213703.0 +545538 (2000.0) IRAS21354+5442 1.172 0.380 1.867L 22.280L 23%
= 213703.0 +545538 (2000.0) SSC21354+5442 1.172 0.380 1.867L 22.280L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.5-13.0p.

object         YYYYMMDD(UT)   mag  code
TmzV730        19940903.567  126p  Tmz.VSOLJ
TmzV730        19941127.492  130p  Tmz.VSOLJ
TmzV730        19951212.460  128p  Tmz.VSOLJ
TmzV730        19970824.567  125p  Tmz.VSOLJ
TmzV730        19970827.549  125p  Tmz.VSOLJ
TmzV730        19971218.393  130p  Tmz.VSOLJ
TmzV730        19980823.571  129p  Tmz.VSOLJ
TmzV730        19980916.541  128p  Tmz.VSOLJ
TmzV730        19990709.583  128p  Tmz.VSOLJ
TmzV730        19990807.602  127p  Tmz.VSOLJ
TmzV730        19991226.386  130p  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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