[vsnet-newvar 1171] New Takamizawa variable (TmzV856)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV856)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV856).

TmzV856
= GSC3288.131 020321.79 +502409.9 (2000.0) 11.48 1
= USNO1350.01982581 020321.840 +502409.88 (2000.0) 10.9 13.9
= 2MASS 020321.792 +502409.72 (2000.0)  0.000  0.000  0.000
= IRAS02001+5009 020008.6 +500951 (1950.0)
     F12=2.09  F25=0.83  F60=0.40L F100=4.36L
     VAR=55 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
= 020322.1 +502412 (2000.0) FSC02001+5009 2.027 0.828 0.704L 6.737L
= 020323.0 +502414 (2000.0) IRAS02001+5009 2.014 0.875 0.400L 4.218L 55%
= 020323.0 +502414 (2000.0) SSC02001+5009 2.014 0.875 0.400L 4.218L
= 020327.6 +502554 (2000.0) DO25213

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.0-12.9p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV856        19950127.424  116p  Tmz.VSOLJ
TmzV856        19960922.666  120p  Tmz.VSOLJ
TmzV856        19970613.728  124p  Tmz.VSOLJ
TmzV856        19980116.413  129p  Tmz.VSOLJ
TmzV856        19980629.701  118p  Tmz.VSOLJ
TmzV856        19991128.448  119p  Tmz.VSOLJ
TmzV856        20000902.678  117p  Tmz.VSOLJ
TmzV856        20011023.605  110p  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