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[vsnet-newvar 287] New Takamizawa variable (TmzV731)

New Takamizawa variable (TmzV731)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV731).

TmzV731
= GSC3971.2185 213628.53 +551533.9 (2000.0) 13.14 1
= USNO1425.12206585 213628.538 +551534.09 (2000.0) 12.6 17.6
= IRAS21348+5502 213451.5 +550207 (1950.0)
    F12=0.76  F25=0.28  F60=2.09L F100=19.05L
    VAR= 0 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
= 213628.6 +551536 (2000.0) IRAS21348+5502 0.776 0.269 2.084L 18.780L 0%
= 213628.6 +551536 (2000.0) SSC21348+5502 0.776 0.269 2.084L 18.780L
= 213630.1 +551559 (2000.0) CS5377 - - - -
= 213630.0 +551500 (2000.0) C(Buscombe) V=14.0 B-V=4.7 -

  Takamizawa's comment:

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

object         YYYYMMDD(UT)   mag  code
TmzV731        19940903.567  132p  Tmz.VSOLJ
TmzV731        19941127.492  133p  Tmz.VSOLJ
TmzV731        19951212.460  131p  Tmz.VSOLJ
TmzV731        19970824.567  130p  Tmz.VSOLJ
TmzV731        19970827.549  130p  Tmz.VSOLJ
TmzV731        19971218.393  129p  Tmz.VSOLJ
TmzV731        19980916.541  135p  Tmz.VSOLJ
TmzV731        19990709.583  133p  Tmz.VSOLJ
TmzV731        19990807.602  134p  Tmz.VSOLJ
TmzV731        19991226.386  129p  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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