[vsnet-obs 19207] New Takamizawa variable (TmzV220)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV220)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV220).

TmzV220
= GSC1808.1561 035028.00 +274006.3 (2000.0) 11.33 1
= GSC1808.1561 035028.12 +274006.2 (2000.0) 11.59 1
= USNO1125.01315921 035028.079 +274005.69 (2000.0) 10.1 14.4
= IRAS03474+2731 034724.9 +273104 (1950.0)
    F12=4.36  F25=2.09  F60=0.40L F100=1.20L
    VAR= 3 LRS=-1
 possibly II: variable star with 'young' O-rich circumstellar shell
= 035027.9 +274006 (2000.0) IRAS03474+2731 4.324 2.146 0.400L 1.188L 3%
= 035027.9 +274006 (2000.0) SSC03474+2731 4.324 2.146 0.400L 1.188L
= 035028.4 +274007 (2000.0) FSC03474+2731 4.469 2.115 0.321 0.670L

  Takamizawa's comment:

  The star may be a semiregular variable  with  a renge of 11.5-12.5p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV220        940301.503  117p  Tmz.VSOLJ
TmzV220        940810.718  115p  Tmz.VSOLJ
TmzV220        940910.716  121p  Tmz.VSOLJ
TmzV220        941104.734  120p  Tmz.VSOLJ
TmzV220        941223.469  120p  Tmz.VSOLJ
TmzV220        950320.479  123p  Tmz.VSOLJ
TmzV220        950823.727  121p  Tmz.VSOLJ
TmzV220        951127.562  123p  Tmz.VSOLJ
TmzV220        960110.488  122p  Tmz.VSOLJ
TmzV220        960815.715  120p  Tmz.VSOLJ
TmzV220        961202.463  123p  Tmz.VSOLJ
TmzV220        961229.411  123p  Tmz.VSOLJ
TmzV220        970714.735  120p  Tmz.VSOLJ
TmzV220        970802.723  125p  Tmz.VSOLJ
TmzV220        971010.705  124p  Tmz.VSOLJ
TmzV220        971123.534  115p  Tmz.VSOLJ
TmzV220        981112.555  119p  Tmz.VSOLJ
TmzV220        990109.506  121p  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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