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[vsnet-obs 18249] New Takamizawa variable (TmzV104)

New Takamizawa variable (TmzV104)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV104).

TmzV104
= GSC5950.603 065423.15 -150003.0 (2000.0) 13.48 0
= GSC5950.603 065423.17 -150003.0 (2000.0) 12.87 0
= USNO0675.02784763 065423.154 -150003.23 (2000.0) 10.6 13.5
= IRAS06521-1456 065206.5 -145612 (1950.0)
    F12=5.75  F25=2.51  F60=0.48  F100=2.29L
    VAR=11 LRS=-1
    II: variable star with 'young' O-rich circumstellar shell
= 065422.8 -150002 (2000.0) IRAS06521-1456 5.812 2.559 0.466 2.224L 11%
= 065422.8 -150002 (2000.0) SSC06521-1456 5.812 2.559 0.466 2.224L
= 065423.9 -145859 (2000.0) M8(III)(Buscombe) - - -
= 065426.3 -145950 (2000.0) WSV38

   Takamizawa's comment:

  The star may be a semiregular variable (SR) with a range of 12.0-14.0p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV104        940314.492  133p  Tmz.VSOLJ
TmzV104        940402.447  131p  Tmz.VSOLJ
TmzV104        941203.712  125p  Tmz.VSOLJ
TmzV104        950219.513  132p  Tmz.VSOLJ
TmzV104        950927.807  120p  Tmz.VSOLJ
TmzV104        951219.624  140p  Tmz.VSOLJ
TmzV104        961021.752  131p  Tmz.VSOLJ
TmzV104        961206.659  139p  Tmz.VSOLJ
TmzV104        971203.662  125p  Tmz.VSOLJ
TmzV104        971231.571  121p  Tmz.VSOLJ
TmzV104        981115.728  130p  Tmz.VSOLJ

Observer: 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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