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[vsnet-newvar 198] New Takamizawa variable (TmzV656)

New Takamizawa variable (TmzV656)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV656).

TmzV656
= GSC3976.21 215611.24 +580645.8 (2000.0) 12.99 6
= USNO1425.12670953 215611.230 +580645.83 (2000.0) 12.1 17.0
= IRAS21545+5752 215433.0 +575227 (1950.0)
    F12=1.00  F25=0.36  F60=2.09L F100=22.90L
    VAR= 5 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
= 215611.3 +580644 (2000.0) IRAS21545+5752 0.985 0.361 2.081L 22.550L 5%
= 215611.3 +580644 (2000.0) SSC21545+5752 0.985 0.361 2.081L 22.550L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.9-13.5p.

object         YYYYMMDD(UT)   mag  code
TmzV656        19940903.562  129p  Tmz.VSOLJ
TmzV656        19970824.567  133p  Tmz.VSOLJ
TmzV656        19970827.540  133p  Tmz.VSOLJ
TmzV656        19971218.437  132p  Tmz.VSOLJ
TmzV656        19980823.562  130p  Tmz.VSOLJ
TmzV656        19980916.530  133p  Tmz.VSOLJ
TmzV656        19990709.574  132p  Tmz.VSOLJ
TmzV656        19990807.594  131p  Tmz.VSOLJ
TmzV656        19991226.462  135p  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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