[vsnet-newvar 260] New Takamizawa variable (TmzV712)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV712)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV712).

TmzV712
= GSC4249.2144 213711.06 +610455.7 (2000.0) 13.16 1
= USNO1500.08278955 213711.100 +610455.48 (2000.0) 12.5 15.8
= IRAS21358+6051 213548.2 +605118 (1950.0)
    F12=0.63  F25=0.14  F60=0.40L F100=3.98L
    VAR=54 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
= 213711.3 +610449 (2000.0) IRAS21358+6051 0.606 0.136 0.400L 3.823L 54%
= 213711.3 +610449 (2000.0) SSC21358+6051 0.606 0.136 0.400L 3.823L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.8-13.6p.

object         YYYYMMDD(UT)   mag  code
TmzV712        19940903.562  129p  Tmz.VSOLJ
TmzV712        19970824.567  135p  Tmz.VSOLJ
TmzV712        19970827.540  136p  Tmz.VSOLJ
TmzV712        19971218.437  135p  Tmz.VSOLJ
TmzV712        19980823.562  132p  Tmz.VSOLJ
TmzV712        19980916.530  128p  Tmz.VSOLJ
TmzV712        19990709.574  131p  Tmz.VSOLJ
TmzV712        19990807.594  136p  Tmz.VSOLJ
TmzV712        19991226.462  131p  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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