[vsnet-newvar 655] New Takamizawa variable (TmzV764)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV764)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV764).

TmzV764
= GSC6088.415 112640.74 -193614.5 (2000.0) 12.18 0
= GSC6088.415 112640.74 -193614.8 (2000.0) 12.24 0
= USNO0675.08190955 112640.741 -193614.68 (2000.0) 10.7 12.9
= 2MASS 112640.752 -193614.76 (2000.0)  0.000  0.000  0.000
= IRAS11241-1919 112410.4 -191939 (1950.0)
     F12=2.09  F25=0.69  F60=0.40L F100=1.74L
     VAR= 0 LRS=-1
  possibly I: oxygen-rich non-variable star without 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
= 112638.4 -193556 (2000.0) FSC11241-1919 2.107 0.668 0.232L 0.670L
= 112640.5 -193609 (2000.0) IRAS11241-1919 2.106 0.701 0.400L 1.693L 0%
= 112640.5 -193609 (2000.0) SSC11241-1919 2.106 0.701 0.400L 1.693L
= 112640.8 -193613 (2000.0) 1146 1.93 TYC2-6088.415.1 (11.67 0.12) (13.93 0.40)

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.8-12.5p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV764        19941229.679  123p  Tmz.VSOLJ
TmzV764        19950226.596  120p  Tmz.VSOLJ
TmzV764        19951124.776  121p  Tmz.VSOLJ
TmzV764        19970330.543  118p  Tmz.VSOLJ
TmzV764        19990112.747  122p  Tmz.VSOLJ
TmzV764        19990208.622  120p  Tmz.VSOLJ
TmzV764        19991207.815  124p  Tmz.VSOLJ
TmzV764        20000108.782  124p  Tmz.VSOLJ
TmzV764        20000131.678  125p  Tmz.VSOLJ
TmzV764        20001128.828  119p  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>

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp