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[vsnet-obs 18945] New Takamizawa variable (TmzV178)

New Takamizawa variable (TmzV178)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV178).

TmzV178
= GSC4078.1230 043521.61 +600129.4 (2000.0) 13.78 1
= USNO1500.03812345 043521.615 +600129.31 (2000.0) 12.0 16.0
= IRAS04310+5955 043100.3 +595517 (1950.0)
    F12=1.00  F25=0.63  F60=0.40L F100=1.90L
    VAR=18 LRS=-1
 possibly IIIa: variable star with more evolved O-rich c.s. shell
 or VIb: variable star with relatively hot dust close to
      the star and relatively cold dust at large distance
      may be O-rich
 or VII: variable star with more evolved C-rich circumstellar shell
= 043521.3 +600127 (2000.0) IRAS04310+5955 0.982 0.649 0.409L 1.935L 18%
= 043521.3 +600127 (2000.0) SSC04310+5955 0.982 0.649 0.409L 1.935L

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with  a renge of 13.4-14.2p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV178        941108.549  139p  Tmz.VSOLJ
TmzV178        941224.463  140p  Tmz.VSOLJ
TmzV178        950127.497  135p  Tmz.VSOLJ
TmzV178        950127.506  135p  Tmz.VSOLJ
TmzV178        970802.715  138p  Tmz.VSOLJ
TmzV178        971010.696  134p  Tmz.VSOLJ
TmzV178        971010.738  135p  Tmz.VSOLJ
TmzV178        971123.518  139p  Tmz.VSOLJ
TmzV178        971221.449  142p  Tmz.VSOLJ
TmzV178        971221.472  142p  Tmz.VSOLJ
TmzV178        980116.455  139p  Tmz.VSOLJ
TmzV178        980820.699  135p  Tmz.VSOLJ
TmzV178        980823.706  138p  Tmz.VSOLJ
TmzV178        981024.551  138p  Tmz.VSOLJ
TmzV178        990109.489  134p  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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