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[vsnet-newvar 228] New Takamizawa variable (TmzV680)

New Takamizawa variable (TmzV680)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV680).

TmzV680
= GSC3995.95 222728.81 +584202.8 (2000.0) 11.99 6
= GSC3995.95 222728.98 +584203.1 (2000.0) 11.85 6
= USNO1425.13587323 222728.954 +584203.30 (2000.0) 11.5 15.3
= IRAS22256+5826 222538.8 +582644 (1950.0)
    F12=0.83  F25=0.17  F60=2.29L F100=27.53L
    VAR=29 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
= 222729.1 +584203 (2000.0) IRAS22256+5826 0.851 0.179 2.282L 26.960L 29%
= 222729.1 +584203 (2000.0) SSC22256+5826 0.851 0.179 2.282L 26.960L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.3-13.2p.

object         YYYYMMDD(UT)   mag  code
TmzV680        19940903.562  127p  Tmz.VSOLJ
TmzV680        19970824.567  124p  Tmz.VSOLJ
TmzV680        19970827.540  125p  Tmz.VSOLJ
TmzV680        19971218.437  128p  Tmz.VSOLJ
TmzV680        19980823.562  127p  Tmz.VSOLJ
TmzV680        19980916.530  126p  Tmz.VSOLJ
TmzV680        19990709.574  132p  Tmz.VSOLJ
TmzV680        19990807.594  125p  Tmz.VSOLJ
TmzV680        19991226.462  123p  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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