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

[vsnet-obs 20270] New Takamizawa variable (TmzV352)

New Takamizawa variable (TmzV352)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV352).

TmzV352
= GSC6553.646 074913.08 -230621.0 (2000.0) 14.84 0
= USNO0600.04501090 074913.087 -230621.88 (2000.0) 12.0 15.7
= IRAS07470-2258 074704.1 -225845 (1950.0)
    F12=2.09  F25=0.76  F60=0.40L F100=6.92L
    VAR= 1 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
= 074912.4 -230620 (2000.0) IRAS07470-2258 2.096 0.738 0.400L 6.623L 1%
= 074912.4 -230620 (2000.0) SSC07470-2258 2.096 0.738 0.400L 6.623L
= 074906.0 -230459 (2000.0) M8(III)(Buscombe) - - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.1-15.0p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV352        940314.501  150p  Tmz.VSOLJ
TmzV352        941111.731  139p  Tmz.VSOLJ
TmzV352        950203.546  143p  Tmz.VSOLJ
TmzV352        950927.799  143p  Tmz.VSOLJ
TmzV352        951118.744  140p  Tmz.VSOLJ
TmzV352        951222.685  131p  Tmz.VSOLJ
TmzV352        961021.768  136p  Tmz.VSOLJ
TmzV352        961206.707  133p  Tmz.VSOLJ
TmzV352        970103.622  140p  Tmz.VSOLJ
TmzV352        970227.485  148p  Tmz.VSOLJ
TmzV352        971013.798  136p  Tmz.VSOLJ
TmzV352        971103.802  139p  Tmz.VSOLJ
TmzV352        971204.695  147p  Tmz.VSOLJ
TmzV352        971224.633  145p  Tmz.VSOLJ
TmzV352        980121.549  141p  Tmz.VSOLJ
TmzV352        980217.497  141p  Tmz.VSOLJ
TmzV352        980325.453  132p  Tmz.VSOLJ
TmzV352        981115.737  141p  Tmz.VSOLJ
TmzV352        981212.628  133p  Tmz.VSOLJ
TmzV352        990208.557  133p  Tmz.VSOLJ
TmzV352        990404.438  134p  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