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[vsnet-newvar 271] New Takamizawa variable (TmzV719)

New Takamizawa variable (TmzV719)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV719).

TmzV719
= GSC3973.2756 220849.44 +551546.1 (2000.0) 14.22 1 N
= USNO1425.13015637 220849.368 +551545.92 (2000.0) 12.4 15.5
= IRAS22070+5500 220701.1 +550053 (1950.0)
    F12=0.33  F25=0.76  F60=0.76  F100=14.45L
    VAR=17 LRS=-1
    IV: variable star with very thick O-rich circumstellar shell
= 220849.7 +551537 (2000.0) IRAS22070+5500 0.325 0.752 0.763 14.290L 17%
= 220849.7 +551537 (2000.0) SSC22070+5500 0.325 0.752 0.763 14.290L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 14.5-15.2p.

object         YYYYMMDD(UT)   mag  code
TmzV719        19940903.567  149p  Tmz.VSOLJ
TmzV719        19941127.492  148p  Tmz.VSOLJ
TmzV719        19951212.460  150p  Tmz.VSOLJ
TmzV719        19970824.567  152p  Tmz.VSOLJ
TmzV719        19970827.549  150p  Tmz.VSOLJ
TmzV719        19980916.541  147p  Tmz.VSOLJ
TmzV719        19990709.583  145p  Tmz.VSOLJ
TmzV719        19990807.602  145p  Tmz.VSOLJ
TmzV719        19991226.386  148p  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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