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[vsnet-newvar 633] New Takamizawa variable (TmzV753)
- Date: Sat, 21 Oct 2000 19:49:34 +0900 (JST)
- To: dubois@simbad.u-strasbg.fr, gerard@simbad.u-strasbg.fr, samus@sai.msu.ru, vsnet-newvar
- From: Taichi Kato <tkato>
- Subject: [vsnet-newvar 633] New Takamizawa variable (TmzV753)
- Cc: vsolj-obs@ooruri.kusastro.kyoto-u.ac.jp
- Sender: owner-vsnet-newvar@kusastro.kyoto-u.ac.jp
New Takamizawa variable (TmzV753)
Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV753).
TmzV753
= GSC6303.716 193945.31 -172930.7 (2000.0) 12.44 0 N
= GSC6303.716 193945.32 -172930.4 (2000.0) 12.87 0 N
= USNO0675.21224407 193945.360 -172930.18 (2000.0) 10.4 12.9
= 2MASS 193945.196 -172931.61 (2000.0) 7.017 6.109 5.747
= IRAS19368-1736 193651.6 -173633 (1950.0)
F12=0.69 F25=0.30L F60=0.40L F100=1.10L
VAR=-1 LRS=-1
possibly I: oxygen-rich non-variable star without circumstellar shell
or 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
= 193944.5 -172936 (2000.0) IRAS19368-1736 0.717 0.300L 0.400L 1.070L -1%
= 193944.5 -172936 (2000.0) SSC19368-1736 0.717 0.300L 0.400L 1.070L
= 193945.1 -172930 (2000.0) FSC19368-1736 0.712 0.282L 0.195L 0.793L
= 193945.1 -172930 (2000.0) 1146 1.20 TYC2-6303.716.1 (11.58 0.15) (13.00 0.35)
Takamizawa's comment:
The star may be a Mira-type variable with a range of 10.9-<15.0p.
Photographic magnitude estimates by VSOLJ members
object YYYYMMDD(UT) mag code
TmzV753 19940512.729 129p Tmz.VSOLJ
TmzV753 19940703.622 122p Tmz.VSOLJ
TmzV753 19940810.598 128p Tmz.VSOLJ
TmzV753 19940930.490 <150p Tmz.VSOLJ
TmzV753 19950407.776 149p Tmz.VSOLJ
TmzV753 19960416.765 149p Tmz.VSOLJ
TmzV753 19960721.652 127p Tmz.VSOLJ
TmzV753 19970307.830 109p Tmz.VSOLJ
TmzV753 19970412.767 132p Tmz.VSOLJ
TmzV753 19970629.660 <150p Tmz.VSOLJ
TmzV753 19971025.457 133p Tmz.VSOLJ
TmzV753 19980823.553 139p Tmz.VSOLJ
TmzV753 19990414.767 123p Tmz.VSOLJ
TmzV753 20000604.714 125p Tmz.VSOLJ
TmzV753 20001019.449 123p 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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