[vsnet-newvar 1245] New Takamizawa variable (TmzV883)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV883)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV883).

TmzV883
= GSC4060.6 025223.00 +670755.0 (2000.0) 13.54 1
= USNO1500.02792256 025223.066 +670755.05 (2000.0) 11.8 16.9
= IRAS02480+6655 024801.9 +665535 (1950.0)
     F12=3.31  F25=1.58  F60=0.40L F100=2.51L
     VAR=68 LRS=-1
  possibly II: variable star with 'young' O-rich circumstellar shell
  or VII: variable star with more evolved C-rich circumstellar shell
= 025222.1 +670753 (2000.0) IRAS02480+6655 3.191 1.647 0.400L 2.550L 68%
= 025222.1 +670753 (2000.0) SSC02480+6655 3.191 1.647 0.400L 2.550L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.2-14.8p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV883        19950127.432  148p  Tmz.VSOLJ
TmzV883        19960922.656  139p  Tmz.VSOLJ
TmzV883        19970613.737  132p  Tmz.VSOLJ
TmzV883        19980116.420  135p  Tmz.VSOLJ
TmzV883        19980629.693  144p  Tmz.VSOLJ
TmzV883        19991128.440  144p  Tmz.VSOLJ
TmzV883        20000902.687  138p  Tmz.VSOLJ
TmzV883        20011023.613  143p  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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