[vsnet-newvar 1206] Confirmation of variability of NSV15419 (Takamizawa)

[Taichi Kato <tkato>]

Confirmation of variability of NSV15419 (Takamizawa)

   Kesao Takamizawa (Nagano, Japan) reports the detection of a variable star,
which has been identifed with NSV15419.  The variability is confirmed.

NSV15419
= GSC3697.2306 020056.98 +583658.2 (2000.0) 11.84 1
= GSC3697.2306 020057.24 +583658.2 (2000.0) 11.68 1
= USNO1425.02836299 020057.144 +583657.89 (2000.0) 10.7 14.8
= IRAS01574+5822 015729.2 +582226 (1950.0)
    F12=4.78  F25=1.90  F60=0.40L F100=6.31L
    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
= 020057.0 +583655 (2000.0) IRAS01574+5822 4.704 1.819 0.400L 6.579L 0%
= 020057.0 +583655 (2000.0) SSC01574+5822 4.704 1.819 0.400L 6.579L
= 020057.0 +583657 (2000.0) NSV15419 ? 11.3 13.5 V - - - M7

   The object may be an SR-type variable with a range of 12.3-13.1p

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
NSV15419       19950127.432  128p  Tmz.VSOLJ
NSV15419       19960922.656  131p  Tmz.VSOLJ
NSV15419       19970613.737  130p  Tmz.VSOLJ
NSV15419       19970811.675  129p  Tmz.VSOLJ
NSV15419       19971218.478  128p  Tmz.VSOLJ
NSV15419       19980116.420  127p  Tmz.VSOLJ
NSV15419       19980629.693  129p  Tmz.VSOLJ
NSV15419       19980820.646  130p  Tmz.VSOLJ
NSV15419       19990724.672  127p  Tmz.VSOLJ
NSV15419       19991128.440  123p  Tmz.VSOLJ
NSV15419       20000902.678  125p  Tmz.VSOLJ
NSV15419       20011023.605  129p  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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