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[vsnet-obs 21608] New Takamizawa variable (TmzV422)

New Takamizawa variable (TmzV422)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV422).

TmzV422
= GSC6555.1564 080802.95 -224256.3 (2000.0) 12.89 0 N
= GSC6555.1564 080802.97 -224255.9 (2000.0) 13.25 0 N
= USNO0600.05384751 080802.968 -224256.53 (2000.0) 11.6 13.2
= IRAS08058-2234 080552.9 -223411 (1950.0)
    F12=0.91  F25=0.40  F60=0.40L F100=1.32L
    VAR= 0 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
= 080802.8 -224258 (2000.0) IRAS08058-2234 0.954 0.412 0.400L 1.309L 0%
= 080802.8 -224258 (2000.0) SSC08058-2234 0.954 0.412 0.400L 1.309L

  Takamizawa's comment:

  The star may be a RR-type variable with a range of 12.4-12.9p.

  (The star more looks a small-amplitude SR type based on the IRAS
   identification - T. Kato).

object         YYMMDD(UT)   mag  code
TmzV422        941111.724  125p  Tmz.VSOLJ
TmzV422        950220.535  127p  Tmz.VSOLJ
TmzV422        951118.735  124p  Tmz.VSOLJ
TmzV422        951222.713  126p  Tmz.VSOLJ
TmzV422        960211.540  126p  Tmz.VSOLJ
TmzV422        961021.828  127p  Tmz.VSOLJ
TmzV422        961208.655  128p  Tmz.VSOLJ
TmzV422        970227.495  129p  Tmz.VSOLJ
TmzV422        971013.806  125p  Tmz.VSOLJ
TmzV422        971203.725  127p  Tmz.VSOLJ
TmzV422        971231.672  126p  Tmz.VSOLJ
TmzV422        981115.785  127p  Tmz.VSOLJ
TmzV422        990208.537  126p  Tmz.VSOLJ
TmzV422        990404.452  127p  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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