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[vsnet-newvar 1124] New Takamizawa variable (TmzV816)

New Takamizawa variable (TmzV816)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV816).

TmzV816
= GSC5176.1624 203550.55 -013619.9 (2000.0) 11.85 0
= USNO0825.18558324 203550.539 -013619.78 (2000.0) 11.0 13.7 *
= 2MASS 203550.544 -013619.80 (2000.0)  0.000  0.000  0.000
= IRAS20332-0146 203315.4 -014646 (1950.0)
     F12=4.36  F25=1.74  F60=0.40L F100=1.00L
     VAR=16 LRS=-1
  possibly II: variable star with 'young' O-rich circumstellar shell
  or VII: variable star with more evolved C-rich circumstellar shell
= 203550.4 -013625 (2000.0) LMS523 M7+ 11.7 D6856
= 203550.6 -013620 (2000.0) IRAS20332-0146 4.183 1.667 0.400L 1.000L 16%
= 203550.6 -013620 (2000.0) SSC20332-0146 4.183 1.667 0.400L 1.000L
= 203551.4 -013615 (2000.0) FSC20332-0146 4.147 1.574 0.337L 1.092L
= 203550.5 -013619 (2000.0) 1172 1.31 TYC2-5176.1624.1 (11.86 0.16) (13.40 0.34)
= 203546.6 -013717 (2000.0) DO6856

  Takamizawa's comment:

  The star may be a semiregular variable  with a range of 11.1-13.1p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV816        19940413.778  127p  Tmz.VSOLJ
TmzV816        19940703.654  122p  Tmz.VSOLJ
TmzV816        19940803.576  126p  Tmz.VSOLJ
TmzV816        19940810.663  130p  Tmz.VSOLJ
TmzV816        19940930.528  127p  Tmz.VSOLJ
TmzV816        19941102.444  128p  Tmz.VSOLJ
TmzV816        19941127.412  127p  Tmz.VSOLJ
TmzV816        19950306.828  125p  Tmz.VSOLJ
TmzV816        19950311.834  124p  Tmz.VSOLJ
TmzV816        19950401.788  127p  Tmz.VSOLJ
TmzV816        19950723.647  128p  Tmz.VSOLJ
TmzV816        19951014.506  127p  Tmz.VSOLJ
TmzV816        19960815.567  131p  Tmz.VSOLJ
TmzV816        19961030.456  120p  Tmz.VSOLJ
TmzV816        19970309.826  125p  Tmz.VSOLJ
TmzV816        19970706.678  122p  Tmz.VSOLJ
TmzV816        19970901.582  120p  Tmz.VSOLJ
TmzV816        19971025.526  111p  Tmz.VSOLJ
TmzV816        19990708.663  123p  Tmz.VSOLJ
TmzV816        20000314.817  125p  Tmz.VSOLJ
TmzV816        20011013.451  127p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       SASS (Saku All Sky Survey)
       Inst.: 10cmR F4 twin patrol cameras and 25cm F2.8
       Baker-Schmidt camera T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <k-takamizawa@nifty.ne.jp>

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