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[vsnet-obs 19049] New Takamizawa variable (TmzV196)

New Takamizawa variable (TmzV196)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV196).  This star is probably identical with the infrared variable
NSV 15877.

TmzV196
= GSC3339.1090 040353.71 +510105.7 (2000.0) 13.31 1
= USNO1350.04274879 040353.710 +510105.77 (2000.0) 12.7 16.2
= IRAS04000+5052 040004.0 +505235 (1950.0)
    F12=5.75  F25=14.45  F60=190.51  F100=275.37 
    VAR=98 LRS=78
    red, 10micron (silicate) absorption, strength=8
    VIII: different sort of object
= 040349.3 +510048 (2000.0) IRAS04000+5052 5.611 14.760 195.900 275.200 98% 2(LRS)
= 040349.3 +510048 (2000.0) SSC04000+5052 5.611 14.760 195.900 275.200
= 040349.3 +510048 (2000.0) NSV15877 ? 7.32 10.62 K -

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with  a renge of 13.1-13.7p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV196        940910.701  133p  Tmz.VSOLJ
TmzV196        941108.549  133p  Tmz.VSOLJ
TmzV196        950823.720  133p  Tmz.VSOLJ
TmzV196        951127.554  136p  Tmz.VSOLJ
TmzV196        970714.728  131p  Tmz.VSOLJ
TmzV196        970802.707  134p  Tmz.VSOLJ
TmzV196        971010.696  134p  Tmz.VSOLJ
TmzV196        971123.526  135p  Tmz.VSOLJ
TmzV196        971221.456  134p  Tmz.VSOLJ
TmzV196        980820.706  133p  Tmz.VSOLJ
TmzV196        990109.498  137p  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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