[vsnet-newvar 1126] New Takamizawa variable (TmzV818)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV818)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV818).  The star is identified with a variable star pointed out
by TASS.

TmzV818
= GSC5182.5 205127.47 -025238.1 (2000.0) 12.18 0
= GSC5182.5 205127.48 -025239.7 (2000.0) 12.58 0
= GSC5182.5 205127.51 -025239.2 (2000.0) 12.90 0
= GSC5182.5 205127.51 -025238.3 (2000.0) 12.60 0
= USNO0825.18851446 205127.501 -025239.37 (2000.0) 11.2 13.3
= 2MASS 205127.480 -025239.00 (2000.0)  0.000  0.000  0.000
= IRAS20488-0304 204850.5 -030400 (1950.0)
     F12=2.51  F25=1.20  F60=0.44L 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
= 205127.0 -025237 (2000.0) TASS_Var_GSC5182.005 11.39 11.84V - - - 
= 205126.7 -025242 (2000.0) IRAS20488-0304 2.576 1.213 0.453L 1.000L 16%
= 205126.7 -025242 (2000.0) SSC20488-0304 2.576 1.213 0.453L 1.000L
= 205127.7 -025237 (2000.0) FSC20488-0303 2.450 1.352 0.247 0.949L
= 205127.4 -025239 (2000.0) 1129 1.41 TYC2-5182.5.1 (11.44 0.11) (13.09 0.34)

  Takamizawa's comment:

  The star may be a semiregular variable  with a range of 11.6-12.1p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV818        19940413.778  118p  Tmz.VSOLJ
TmzV818        19940703.654  116p  Tmz.VSOLJ
TmzV818        19940803.576  119p  Tmz.VSOLJ
TmzV818        19940810.663  119p  Tmz.VSOLJ
TmzV818        19940930.528  118p  Tmz.VSOLJ
TmzV818        19941102.444  120p  Tmz.VSOLJ
TmzV818        19941127.412  119p  Tmz.VSOLJ
TmzV818        19950306.828  117p  Tmz.VSOLJ
TmzV818        19950311.834  120p  Tmz.VSOLJ
TmzV818        19950401.788  118p  Tmz.VSOLJ
TmzV818        19950723.647  116p  Tmz.VSOLJ
TmzV818        19951014.506  118p  Tmz.VSOLJ
TmzV818        19960815.567  117p  Tmz.VSOLJ
TmzV818        19961030.456  118p  Tmz.VSOLJ
TmzV818        19970309.826  118p  Tmz.VSOLJ
TmzV818        19970706.678  121p  Tmz.VSOLJ
TmzV818        19970901.582  119p  Tmz.VSOLJ
TmzV818        19971025.526  117p  Tmz.VSOLJ
TmzV818        19990708.663  120p  Tmz.VSOLJ
TmzV818        20000314.817  119p  Tmz.VSOLJ
TmzV818        20011013.451  118p  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>

VSNET Home Page

Return to Daisaku Nogami

---

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