[vsnet-newvar 1289] New Takamizawa variable (TmzV903)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV903)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV903).

TmzV903
= GSC4044.178 015530.68 +660552.5 (2000.0) 13.76 1
= USNO1500.01963303 015530.690 +660552.67 (2000.0) 12.2 17.3
= IRAS01517+6551 015145.4 +655110 (1950.0)
     F12=2.75  F25=1.32  F60=0.40L F100=3.02L
     VAR=17 LRS=-1
  possibly II: variable star with 'young' O-rich circumstellar shell
  or VII: variable star with more evolved C-rich circumstellar shell
= 015530.3 +660551 (2000.0) IRAS01517+6551 2.646 1.370 0.400L 2.948L 17%
= 015530.3 +660551 (2000.0) SSC01517+6551 2.646 1.370 0.400L 2.948L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.4-14.0p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV903        19950127.432  137p  Tmz.VSOLJ
TmzV903        19960922.656  136p  Tmz.VSOLJ
TmzV903        19970613.737  138p  Tmz.VSOLJ
TmzV903        19980116.420  140p  Tmz.VSOLJ
TmzV903        19980629.693  135p  Tmz.VSOLJ
TmzV903        19991128.440  134p  Tmz.VSOLJ
TmzV903        20000902.687  134p  Tmz.VSOLJ
TmzV903        20011023.613  140p  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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