[vsnet-newvar 206] New Takamizawa variable (TmzV664)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV664)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV664).

TmzV664
= GSC4263.1408 220843.99 +611215.4 (2000.0) 12.22 6
= USNO1500.08909262 220843.990 +611215.22 (2000.0) 11.6 15.7
= IRAS22071+6057 220707.3 +605729 (1950.0)
    F12=1.00  F25=0.36  F60=2.75L F100=27.53L
    VAR=47 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
= 220841.9 +611200 (2000.0) C(Buscombe)
= 220843.6 +611213 (2000.0) CS5590 - - 9.1 -
= 220844.1 +611213 (2000.0) IRAS22071+6057 0.984 0.381 2.653L 28.620L 47%
= 220844.1 +611213 (2000.0) SSC22071+6057 0.984 0.381 2.653L 28.620L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.8-12.8p.

object         YYYYMMDD(UT)   mag  code
TmzV664        19940903.562  122p  Tmz.VSOLJ
TmzV664        19970824.567  125p  Tmz.VSOLJ
TmzV664        19970827.540  124p  Tmz.VSOLJ
TmzV664        19971218.437  123p  Tmz.VSOLJ
TmzV664        19980823.562  118p  Tmz.VSOLJ
TmzV664        19980916.530  126p  Tmz.VSOLJ
TmzV664        19990709.574  125p  Tmz.VSOLJ
TmzV664        19990807.594  122p  Tmz.VSOLJ
TmzV664        19991226.462  128p  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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