[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

[vsnet-obs 19946] New Takamizawa variable (TmzV309)

New Takamizawa variable (TmzV309)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV309).

TmzV309
= GSC5399.1531 072218.06 -095601.9 (2000.0) 14.28 0 N
= USNO0750.04073600 072218.085 -095602.99 (2000.0) 10.7 17.2
= IRAS07199-0950 071954.6 -095013 (1950.0)
    F12=0.83  F25=0.25  F60=0.40L F100=1.58L
    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
= 072217.3 -095600 (2000.0) IRAS07199-0950 0.822 0.248 0.400L 1.522L 0%
= 072217.3 -095600 (2000.0) SSC07199-0950 0.822 0.248 0.400L 1.522L
= 072218.0 -095559 (2000.0) C(Buscombe) V=11.5 - -
= 072218.1 -095600 (2000.0) CS1676 - 11.5 - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.3-13.5p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV309        940314.509  134p  Tmz.VSOLJ
TmzV309        941111.738  133p  Tmz.VSOLJ
TmzV309        950203.556  126p  Tmz.VSOLJ
TmzV309        951222.676  135p  Tmz.VSOLJ
TmzV309        960211.515  132p  Tmz.VSOLJ
TmzV309        961021.776  129p  Tmz.VSOLJ
TmzV309        961206.699  130p  Tmz.VSOLJ
TmzV309        970103.614  127p  Tmz.VSOLJ
TmzV309        970227.476  118p  Tmz.VSOLJ
TmzV309        971013.791  132p  Tmz.VSOLJ
TmzV309        971103.794  135p  Tmz.VSOLJ
TmzV309        971204.703  134p  Tmz.VSOLJ
TmzV309        971224.641  134p  Tmz.VSOLJ
TmzV309        980121.556  133p  Tmz.VSOLJ
TmzV309        980325.461  134p  Tmz.VSOLJ
TmzV309        981115.744  123p  Tmz.VSOLJ
TmzV309        981212.657  133p  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>

VSNET Home Page

Return to Daisaku Nogami

vsnet-adm@kusastro.kyoto-u.ac.jp