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[vsnet-newvar 1165] New Takamizawa variable (TmzV850)

New Takamizawa variable (TmzV850)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV850).

TmzV850
= GSC3291.86 014133.21 +505434.9 (2000.0) 10.51 1
= USNO1350.01652578 014133.271 +505434.91 (2000.0)  9.9 13.3
= 2MASS 014133.201 +505434.35 (2000.0)  5.492  0.000  0.000
= 2MASS 014133.216 +505434.92 (2000.0)  0.000  0.000  0.000
= IRAS01384+5039 013825.1 +503926 (1950.0)
     F12=1.20  F25=0.28  F60=0.40L F100=1.32L
     VAR= 0 LRS=-1
  possibly I: oxygen-rich non-variable star without circumstellar shell
  or VIa: non-variable star with relatively cold dust at large
       distance, may be carbon-rich
= 014133.0 +505435 (2000.0) FSC01384+5039 1.159 0.300 0.131L 1.058L
= 014133.3 +505434 (2000.0) IRAS01384+5039 1.176 0.278 0.400L 1.287L 0%
= 014133.3 +505434 (2000.0) SSC01384+5039 1.176 0.278 0.400L 1.287L
= 014133.1 +505434 (2000.0) 1106 1.62 TYC2-3291.86.1 (11.23 0.08) (13.14 0.30)

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.0-11.7p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV850        19940908.690  113p  Tmz.VSOLJ
TmzV850        19950120.488  112p  Tmz.VSOLJ
TmzV850        19970613.728  113p  Tmz.VSOLJ
TmzV850        19980116.413  117p  Tmz.VSOLJ
TmzV850        19980629.701  111p  Tmz.VSOLJ
TmzV850        19991128.448  113p  Tmz.VSOLJ
TmzV850        20000902.678  110p  Tmz.VSOLJ
TmzV850        20011023.605  111p  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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