[vsnet-obs 19449] New Takamizawa variable (TmzV245)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV245)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV245).

TmzV245
= USNO1350.06561642 060539.510 +522422.90 (2000.0) 12.1 15.5
= IRAS06016+5224 060139.2 +522438 (1950.0)
    F12=1.00  F25=0.58  F60=0.40L F100=1.00L
    VAR=14 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
= 060538.1 +522421 (2000.0) FSC06016+5224 0.903 0.501 0.190L 1.670L
= 060539.6 +522421 (2000.0) IRAS06016+5224 0.957 0.585 0.400L 1.000L 14%
= 060539.6 +522421 (2000.0) SSC06016+5224 0.957 0.585 0.400L 1.000L

  Takamizawa's comment:

  The star may be a semiregular variable  with  a range of 12.6-14.0p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV245        950127.530  135p  Tmz.VSOLJ
TmzV245        950203.476  136p  Tmz.VSOLJ
TmzV245        951217.537  130p  Tmz.VSOLJ
TmzV245        951219.564  130p  Tmz.VSOLJ
TmzV245        961015.749  133p  Tmz.VSOLJ
TmzV245        970811.728  134p  Tmz.VSOLJ
TmzV245        971109.675  135p  Tmz.VSOLJ
TmzV245        971124.546  137p  Tmz.VSOLJ
TmzV245        971221.508  134p  Tmz.VSOLJ
TmzV245        980119.463  125p  Tmz.VSOLJ
TmzV245        980302.440  129p  Tmz.VSOLJ
TmzV245        980916.721  126p  Tmz.VSOLJ
TmzV245        981024.647  126p  Tmz.VSOLJ
TmzV245        981218.631  140p  Tmz.VSOLJ
TmzV245        990111.547  136p  Tmz.VSOLJ
TmzV245        990204.446  131p  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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