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[vsnet-obs 19218] New Takamizawa variable (TmzV222)

New Takamizawa variable (TmzV222)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV222).

TmzV222
= GSC2359.1109 034210.88 +320816.5 (2000.0) 13.02 1
= USNO1200.01709799 034210.889 +320816.44 (2000.0) 11.8 16.0
= IRAS03390+3158 033900.9 +315834 (1950.0)
    F12=0.83  F25=0.36  F60=4.36L F100=19.05 
    VAR=41 LRS=-1
 possibly II: variable star with 'young' O-rich 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
= 034208.9 +320806 (2000.0) IRAS03390+3158 0.860 0.368 4.388L 18.690 41%
= 034208.9 +320806 (2000.0) SSC03390+3158 0.860 0.368 4.388L 18.690

  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         YYMMDD(UT)   mag  code
TmzV222        940301.503  131p  Tmz.VSOLJ
TmzV222        940810.718  133p  Tmz.VSOLJ
TmzV222        940910.716  131p  Tmz.VSOLJ
TmzV222        941104.734  132p  Tmz.VSOLJ
TmzV222        941223.469  135p  Tmz.VSOLJ
TmzV222        950320.479  130p  Tmz.VSOLJ
TmzV222        950823.727  130p  Tmz.VSOLJ
TmzV222        951127.562  133p  Tmz.VSOLJ
TmzV222        960110.488  130p  Tmz.VSOLJ
TmzV222        960815.715  130p  Tmz.VSOLJ
TmzV222        961202.463  131p  Tmz.VSOLJ
TmzV222        961229.411  133p  Tmz.VSOLJ
TmzV222        970714.735  <130p  Tmz.VSOLJ
TmzV222        970802.723  131p  Tmz.VSOLJ
TmzV222        971010.705  131p  Tmz.VSOLJ
TmzV222        971123.534  130p  Tmz.VSOLJ
TmzV222        981112.555  133p  Tmz.VSOLJ
TmzV222        990109.506  130p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       Inst.: 10cmR F4 twin patrol cameras  T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <GHA07243@nifty.ne.jp>

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