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[vsnet-newvar 1251] New Takamizawa variable (TmzV889)

New Takamizawa variable (TmzV889)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV889).

TmzV889
= GSC4050.1047 023108.46 +631558.5 (2000.0) 12.47 1
= USNO1500.02483030 023108.586 +631558.63 (2000.0) 99.9 10.6
= IRAS02272+6302 022715.2 +630241 (1950.0)
     F12=0.76  F25=0.83  F60=6.92  F100=27.53 
     VAR=10 LRS=-1
     VIb: variable star with relatively hot dust close to
       the star and relatively cold dust at large distance
       may be O-rich
= 023108.8 +631558 (2000.0) IRAS02272+6302 0.754 0.854 6.854 27.560 10%
= 023108.8 +631558 (2000.0) SSC02272+6302 0.754 0.854 6.854 27.560
= 023108.8 +631601 (2000.0) MSX5C_G133.8715+02.5332 -33 -18 0 -3 -1 -5 V(%):-:-:1:-:-:-

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.0-13.5p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV889        19950127.432  130p  Tmz.VSOLJ
TmzV889        19960922.656  135p  Tmz.VSOLJ
TmzV889        19970613.737  134p  Tmz.VSOLJ
TmzV889        19980116.420  134p  Tmz.VSOLJ
TmzV889        19980629.693  131p  Tmz.VSOLJ
TmzV889        19991128.440  130p  Tmz.VSOLJ
TmzV889        20000902.687  135p  Tmz.VSOLJ
TmzV889        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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