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[vsnet-obs 19760] New Takamizawa variable (TmzV270)

New Takamizawa variable (TmzV270)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV270).

TmzV270
= GSC4783.2583 060833.57 -004251.6 (2000.0) 13.08 0
= USNO0825.01973136 060833.568 -004251.79 (2000.0) 10.6 13.7
= IRAS06060-0042 060600.8 -004218 (1950.0)
    F12=1.74  F25=0.83  F60=0.40L F100=1.10L
    VAR=33 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
= 060833.6 -004249 (2000.0) IRAS06060-0042 1.724 0.818 0.400L 1.050L 33%
= 060833.6 -004249 (2000.0) SSC06060-0042 1.724 0.818 0.400L 1.050L

  Takamizawa's comment:

  The star may be an iregular variable with a range of 11.9-12.6p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV270        940331.485  121p  Tmz.VSOLJ
TmzV270        941127.622  119p  Tmz.VSOLJ
TmzV270        950203.519  119p  Tmz.VSOLJ
TmzV270        950219.449  121p  Tmz.VSOLJ
TmzV270        950927.771  119p  Tmz.VSOLJ
TmzV270        951021.757  122p  Tmz.VSOLJ
TmzV270        951219.605  122p  Tmz.VSOLJ
TmzV270        961016.753  123p  Tmz.VSOLJ
TmzV270        961206.602  119p  Tmz.VSOLJ
TmzV270        970901.800  124p  Tmz.VSOLJ
TmzV270        971221.572  124p  Tmz.VSOLJ
TmzV270        980823.774  124p  Tmz.VSOLJ
TmzV270        990206.492  126p  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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