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[vsnet-newvar 1342] Confirmation of variability of NSV 15216 (Takamizawa)

Confirmation of variability of NSV 15216 (Takamizawa)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a variable
star, which is identified with NSV 15216.  The variability is confirmed.

NSV15216
= GSC4025.1404 005909.09 +634850.0 (2000.0) 11.03 1 N
= GSC4025.1404 005909.20 +634850.0 (2000.0) 11.25 1
= USNO1500.01033029 005909.252 +634850.09 (2000.0) 10.8 16.1
= IRAS00560+6332 005601.3 +633234 (1950.0)
     F12=3.98  F25=1.32  F60=0.40L F100=3.63L
     VAR=51 LRS=-1
  possibly I: oxygen-rich non-variable star without circumstellar shell
  or VII: variable star with more evolved C-rich circumstellar shell
= 005907.8 +634852 (2000.0) MSX5C_G123.7804+00.9557 -17 14 5 3 2 -2 V(%):-:0:1:4:4:-
= 005908.5 +634844 (2000.0) IRAS00560+6332 3.917 1.362 0.400L 3.665L 51%
= 005908.5 +634844 (2000.0) SSC00560+6332 3.917 1.362 0.400L 3.665L
= 005909.0 +634849 (2000.0) CS149 - 12.5 10.0 -
= 005909.1 +634849 (2000.0) NSV15216 ? 10.9 13.2 V - - - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 10.5-12.4p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  observer
NSV15216       19950120.474  115p  Tmz.VSOLJ
NSV15216       19970517.718  111p  Tmz.VSOLJ
NSV15216       19970703.727  115p  Tmz.VSOLJ
NSV15216       19980116.397  116p  Tmz.VSOLJ
NSV15216       19980823.617  105p  Tmz.VSOLJ
NSV15216       19981011.414  113p  Tmz.VSOLJ
NSV15216       19990105.447  111p  Tmz.VSOLJ
NSV15216       20000529.751  110p  Tmz.VSOLJ
NSV15216       20001216.393  118p  Tmz.VSOLJ
NSV15216       20010520.749  108p  Tmz.VSOLJ
NSV15216       20011116.528  124p  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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