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[vsnet-obs 19633] New Takamizawa variable (TmzV258)

New Takamizawa variable (TmzV258)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV258).

TmzV258
= GSC1891.1040 062636.54 +292002.0 (2000.0) 10.07 1
= GSC1891.1040 062636.55 +292001.8 (2000.0) 10.71 1
= USNO1125.04033223 062636.553 +292001.88 (2000.0) 11.6 12.7 *
= IRAS06234+2921 062325.7 +292152 (1950.0)
    F12=6.31  F25=2.29  F60=0.40L F100=1.10L
    VAR= 5 LRS=-1
 possibly II: variable star with 'young' O-rich circumstellar shell
= 062634.2 +292035 (2000.0) DO12198
= 062636.7 +292002 (2000.0) IRAS06234+2921 6.264 2.352 0.400L 1.098L 5%
= 062636.7 +292002 (2000.0) SSC06234+2921 6.264 2.352 0.400L 1.098L
= 062638.0 +291916 (2000.0) TMSS+30151

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 10.5-11.5p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV258        940302.579  108p  Tmz.VSOLJ
TmzV258        940331.506  109p  Tmz.VSOLJ
TmzV258        940429.508  109p  Tmz.VSOLJ
TmzV258        940910.778  115p  Tmz.VSOLJ
TmzV258        941127.646  105p  Tmz.VSOLJ
TmzV258        950203.484  113p  Tmz.VSOLJ
TmzV258        950219.464  115p  Tmz.VSOLJ
TmzV258        951021.772  109p  Tmz.VSOLJ
TmzV258        951219.574  114p  Tmz.VSOLJ
TmzV258        961016.736  109p  Tmz.VSOLJ
TmzV258        961206.576  108p  Tmz.VSOLJ
TmzV258        970127.436  109p  Tmz.VSOLJ
TmzV258        970811.769  107p  Tmz.VSOLJ
TmzV258        970901.762  107p  Tmz.VSOLJ
TmzV258        971103.734  110p  Tmz.VSOLJ
TmzV258        971105.717  108p  Tmz.VSOLJ
TmzV258        971221.548  109p  Tmz.VSOLJ
TmzV258        980119.470  111p  Tmz.VSOLJ
TmzV258        980318.494  114p  Tmz.VSOLJ
TmzV258        980820.757  109p  Tmz.VSOLJ
TmzV258        980916.769  110p  Tmz.VSOLJ
TmzV258        981218.638  115p  Tmz.VSOLJ
TmzV258        990204.453  110p  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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