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[vsnet-obs 18859] New Takamizawa variable (TmzV157)

New Takamizawa variable (TmzV157)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV157).

TmzV157
Takamizawa's position: 04h32m58s.5 +63o21'44"
(no USNO counterpart)
= IRAS04284+6314 042824.5 +631444 (1950.0)
    F12=0.58  F25=0.19  F60=0.52L F100=3.02L
    VAR= 0 LRS=-1
 possibly I: oxygen-rich non-variable star without 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
= 043301.0 +632104 (2000.0) IRAS04284+6314 0.565 0.187 0.533L 3.079L 0%
= 043301.0 +632104 (2000.0) SSC04284+6314 0.565 0.187 0.533L 3.079L

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with a range of 13.7-14.3p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV157        950127.497  141p  Tmz.VSOLJ
TmzV157        951128.592  137p  Tmz.VSOLJ
TmzV157        970802.715  140p  Tmz.VSOLJ
TmzV157        971123.522  138p  Tmz.VSOLJ
TmzV157        971123.579  139p  Tmz.VSOLJ
TmzV157        971221.449  138p  Tmz.VSOLJ
TmzV157        980116.455  143p  Tmz.VSOLJ
TmzV157        980820.699  141p  Tmz.VSOLJ
TmzV157        980823.706  138p  Tmz.VSOLJ
TmzV157        981024.551  137p  Tmz.VSOLJ
TmzV157        981218.581  140p  Tmz.VSOLJ
TmzV157        990109.489  140p  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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