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[vsnet-newvar 1205] New Takamizawa variable (TmzV877)

New Takamizawa variable (TmzV877)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV877).

TmzV877
= GSC4037.2696 021520.46 +621349.7 (2000.0) 13.28 1
= USNO1500.02279766 021520.487 +621349.74 (2000.0) 11.8 16.3
= IRAS02116+6159 021136.8 +615947 (1950.0)
     F12=0.83  F25=0.25L F60=4.78L F100=57.53L
     VAR=-1 LRS=-1
  possibly I: oxygen-rich non-variable star without circumstellar shell
  or VII: variable star with more evolved C-rich circumstellar shell
  or VIa: non-variable star with relatively cold dust at large
       distance, may be carbon-rich
= 021519.9 +621343 (2000.0) IRAS02116+6159 0.841 0.250L 4.633L 57.660L -1%
= 021519.9 +621343 (2000.0) SSC02116+6159 0.841 0.250L 4.633L 57.660L
= 021520.1 +621351 (2000.0) MSX5C_G132.5334+00.9334 -17 -9 1 0 0 -2 V(%):-:-:1:-:-:-
= 021459.7 +621404 (2000.0) DO25462

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.3-14.2p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV877        19950127.432  138p  Tmz.VSOLJ
TmzV877        19960922.656  134p  Tmz.VSOLJ
TmzV877        19970811.675  142p  Tmz.VSOLJ
TmzV877        19971218.478  135p  Tmz.VSOLJ
TmzV877        19980116.420  136p  Tmz.VSOLJ
TmzV877        19980629.693  137p  Tmz.VSOLJ
TmzV877        19990724.672  134p  Tmz.VSOLJ
TmzV877        19991128.440  136p  Tmz.VSOLJ
TmzV877        20000902.678  133p  Tmz.VSOLJ
TmzV877        20011023.605  138p  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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