[vsnet-newvar 667] New Takamizawa variable (TmzV775)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV775)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV775).

TmzV775
= GSC4938.681 115914.63 -060713.1 (2000.0) 13.59 0
= USNO0825.07641751 115914.625 -060713.66 (2000.0) 11.3 13.6
= 2MASS 115914.612 -060713.74 (2000.0)  6.153  0.000  4.923
= IRAS11566-0550 115640.3 -055029 (1950.0)
     F12=1.00  F25=0.58  F60=0.40L F100=1.00L
     VAR= 0 LRS=-1
  possibly IIIa: variable star with more evolved O-rich c.s. shell
  or VIb: variable star with relatively hot dust close to
       the star and relatively cold dust at large distance
       may be O-rich
  or VII: variable star with more evolved C-rich circumstellar shell
= 115913.9 -060710 (2000.0) IRAS11566-0550 1.020 0.592 0.400L 1.000L 0%
= 115913.9 -060710 (2000.0) SSC11566-0550 1.020 0.592 0.400L 1.000L
= 115915.1 -060718 (2000.0) FSC11566-0550 0.963 0.528 0.188L 0.585L

  Takamizawa's comment:

   The star may be a semiregular variable  with a range of 12.3-13.3p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV775        19940217.700  128p  Tmz.VSOLJ
TmzV775        19940306.597  129p  Tmz.VSOLJ
TmzV775        19940505.518  125p  Tmz.VSOLJ
TmzV775        19941103.826  129p  Tmz.VSOLJ
TmzV775        19941130.788  129p  Tmz.VSOLJ
TmzV775        19950226.633  131p  Tmz.VSOLJ
TmzV775        19951118.815  133p  Tmz.VSOLJ
TmzV775        19960418.559  123p  Tmz.VSOLJ
TmzV775        19970212.719  132p  Tmz.VSOLJ
TmzV775        19970410.522  129p  Tmz.VSOLJ
TmzV775        19990112.772  129p  Tmz.VSOLJ
TmzV775        19990208.659  127p  Tmz.VSOLJ
TmzV775        19991207.837  130p  Tmz.VSOLJ
TmzV775        20000131.699  131p  Tmz.VSOLJ
TmzV775        20001204.801  128p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       SASS (Saku All Sky Survey)
       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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