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[vsnet-newvar 1248] New Takamizawa variable (TmzV886)

New Takamizawa variable (TmzV886)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV886).

TmzV886
= GSC4051.1563 024104.97 +621732.3 (2000.0) 13.49 1
= GSC4051.1563 024105.08 +621732.5 (2000.0) 13.40 1
= USNO1500.02621506 024104.966 +621732.23 (2000.0) 12.3 15.7
= IRAS02371+6204 023709.2 +620438 (1950.0)
     F12=5.25  F25=2.29  F60=3.63L F100=36.30L
     VAR= 8 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
= 024103.8 +621728 (2000.0) IRAS02371+6204 5.218 2.236 3.805L 35.880L 8%
= 024103.8 +621728 (2000.0) SSC02371+6204 5.218 2.236 3.805L 35.880L
= 024105.2 +621733 (2000.0) MSX5C_G135.3008+02.0836 -33 -18 5 4 3 6 V(%):-:-:1:2:2:-

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.9-13.5p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV886        19950127.432  135p  Tmz.VSOLJ
TmzV886        19970613.737  134p  Tmz.VSOLJ
TmzV886        19980116.420  130p  Tmz.VSOLJ
TmzV886        19980629.693  129p  Tmz.VSOLJ
TmzV886        19991128.440  131p  Tmz.VSOLJ
TmzV886        20000902.687  132p  Tmz.VSOLJ
TmzV886        20011023.613  130p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       SASS (Saku All Sky Survey)
       Inst.: 10cmR F4 twin patrol cameras and 25cm F2.8
       Baker-Schmidt camera T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <k-takamizawa@nifty.ne.jp>

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