[vsnet-newvar 1247] New Takamizawa variable (TmzV885)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV885)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV885).

TmzV885
= GSC4060.661 025310.23 +661518.3 (2000.0) 13.15 1
= USNO1500.02803311 025310.232 +661518.33 (2000.0) 12.7 17.4
= IRAS02488+6603 024853.6 +660302 (1950.0)
     F12=2.75  F25=1.32  F60=0.40L F100=1.90L
     VAR= 9 LRS=-1
  possibly II: variable star with 'young' O-rich circumstellar shell
  or VII: variable star with more evolved C-rich circumstellar shell
= 025309.8 +661517 (2000.0) IRAS02488+6603 2.824 1.300 0.400L 1.967L 9%
= 025309.8 +661517 (2000.0) SSC02488+6603 2.824 1.300 0.400L 1.967L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.0-13.9p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV885        19950127.432  139p  Tmz.VSOLJ
TmzV885        19960922.656  138p  Tmz.VSOLJ
TmzV885        19970613.737  137p  Tmz.VSOLJ
TmzV885        19980116.420  134p  Tmz.VSOLJ
TmzV885        19980629.693  139p  Tmz.VSOLJ
TmzV885        19991128.440  135p  Tmz.VSOLJ
TmzV885        20000902.687  130p  Tmz.VSOLJ
TmzV885        20011023.613  132p  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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