[vsnet-obs 19908] New Takamizawa variable (TmzV304)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV304)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV304).

TmzV304
07h25m58s.1 -11o44'25" (2000.0) : Takamizawa's measurement
(no USNO candidate)

= IRAS07236-1138 072337.6 -113818 (1950.0)
    F12=6.31  F25=3.02  F60=0.44  F100=6.31L
    VAR=99 LRS=-1
    II: variable star with 'young' O-rich circumstellar shell
= 072558.3 -114420 (2000.0) IRAS07236-1138 6.292 3.140 0.452 6.362L 99%
= 072558.3 -114420 (2000.0) SSC07236-1138 6.292 3.140 0.452 6.362L

  Takamizawa's comment:

  The star may be a Mira-type variable with a range of 13.2-<15.4p,
and a piriod of about 417days (JD2451133). The star is visible at mag 17
on Real-Sky CD. FX CMa is located about 16' east of this new variable.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV304        940314.509  135p  Tmz.VSOLJ
TmzV304        941111.738  <150p  Tmz.VSOLJ
TmzV304        950203.556  <154p  Tmz.VSOLJ
TmzV304        951222.676  <150p  Tmz.VSOLJ
TmzV304        960211.515  <154p  Tmz.VSOLJ
TmzV304        961021.776  <150p  Tmz.VSOLJ
TmzV304        961206.699  <154p  Tmz.VSOLJ
TmzV304        970103.614  <154p  Tmz.VSOLJ
TmzV304        970227.476  <154p  Tmz.VSOLJ
TmzV304        971013.791  132p  Tmz.VSOLJ
TmzV304        971103.794  143p  Tmz.VSOLJ
TmzV304        971204.703  150p  Tmz.VSOLJ
TmzV304        971224.641  152p  Tmz.VSOLJ
TmzV304        980121.556  154p  Tmz.VSOLJ
TmzV304        980325.461  154p  Tmz.VSOLJ
TmzV304        981115.744  134p  Tmz.VSOLJ
TmzV304        981212.657  136p  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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