[vsnet-newvar 1178] New Takamizawa variable (TmzV861)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV861)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV861).

TmzV861
= GSC3307.1656 023146.76 +522256.2 (2000.0) 11.32 1 N
= USNO1350.02500346 023146.713 +522255.90 (2000.0) 99.9 12.7
= 2MASS 023146.754 +522255.13 (2000.0) 10.560 10.187  8.532
= 2MASS 023146.926 +522301.34 (2000.0)  9.833  7.574  5.797
= IRAS02283+5209 022820.7 +520944 (1950.0)
     F12=5.25  F25=1.58  F60=0.52L F100=4.78L
     VAR=12 LRS=-1
  possibly I: oxygen-rich non-variable star without circumstellar shell
  or VII: variable star with more evolved C-rich circumstellar shell
= 023146.9 +522258 (2000.0) IRAS02283+5209 5.298 1.547 0.534L 4.617L 12%
= 023146.9 +522258 (2000.0) SSC02283+5209 5.298 1.547 0.534L 4.617L
= 023147.0 +522302 (2000.0) CS363 - 11.8: 9.6 -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.0-11.8p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV861        19950127.424  112p  Tmz.VSOLJ
TmzV861        19960922.666  110p  Tmz.VSOLJ
TmzV861        19970613.728  115p  Tmz.VSOLJ
TmzV861        19980116.413  118p  Tmz.VSOLJ
TmzV861        19980629.701  114p  Tmz.VSOLJ
TmzV861        19991128.448  113p  Tmz.VSOLJ
TmzV861        20000902.678  116p  Tmz.VSOLJ
TmzV861        20011023.605  115p  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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