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[vsnet-newvar 1167] New Takamizawa variable (TmzV852)

New Takamizawa variable (TmzV852)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV852).

TmzV852
= GSC3292.1801 015903.36 +522322.3 (2000.0) 10.69 1
= USNO1350.01916669 015903.363 +522322.47 (2000.0)  9.8 14.0
= 2MASS 015903.360 +522322.20 (2000.0)  0.000  0.000  0.000
= IRAS01557+5208 015547.7 +520849 (1950.0)
     F12=5.25  F25=2.09  F60=0.48  F100=1.10L
     VAR= 8 LRS=-1
     VII: variable star with more evolved C-rich circumstellar shell
= 015903.7 +522322 (2000.0) IRAS01557+5208 5.086 2.108 0.492 1.102L 8%
= 015903.7 +522322 (2000.0) SSC01557+5208 5.086 2.108 0.492 1.102L
= 015903.3 +522322 (2000.0) 1065 1.51 TYC3292.1801.1 plx=-219.6(63.6) (0.09 0.34)
= 015903.3 +522321 (2000.0) 1070 2.37 TYC2-3292.1801.1 (10.95 0.06) (13.74 0.36)
= 015906.7 +522313 (2000.0) DO25103

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 10.3-10.9p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV852        19950127.424  106p  Tmz.VSOLJ
TmzV852        19960922.666  106p  Tmz.VSOLJ
TmzV852        19970613.728  104p  Tmz.VSOLJ
TmzV852        19980116.413  109p  Tmz.VSOLJ
TmzV852        19980629.701  105p  Tmz.VSOLJ
TmzV852        19991128.448  106p  Tmz.VSOLJ
TmzV852        20000902.678  103p  Tmz.VSOLJ
TmzV852        20011023.605  104p  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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