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[vsnet-newvar 1204] New Takamizawa variable (TmzV876)
- Date: Thu, 8 Nov 2001 10:08:06 +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 1204] New Takamizawa variable (TmzV876)
- Cc: vsnet-chat, vsnet-unknown, vsolj-obs@ooruri.kusastro.kyoto-u.ac.jp
- Sender: owner-vsnet-newvar@kusastro.kyoto-u.ac.jp
New Takamizawa variable (TmzV876)
Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV876). The variable is identified with an A2V-type emission line
object with a strong infrared excess. The nature of the object needs to be
studied in more detail.
TmzV876
= GSC4037.2277 021448.47 +622622.2 (2000.0) 13.05 1
= USNO1500.02271910 021448.478 +622622.17 (2000.0) 12.8 13.9
= IRAS02110+6212 021104.4 +621220 (1950.0)
F12=3.02 F25=2.09 F60=3.63L F100=43.64L
VAR= 7 LRS=-1
possibly IIIa: variable star with more evolved O-rich c.s. shell
or VIb: variable star with relatively hot dust close to
the star and relatively cold dust at large distance
may be O-rich
or VII: variable star with more evolved C-rich circumstellar shell
= 021448.4 +622621 (2000.0) HBH10-1 em V=12.9 A2V
= 021447.8 +622618 (2000.0) IRAS02110+6212 2.946 2.139 3.780L 44.670L 7%
= 021447.8 +622618 (2000.0) SSC02110+6212 2.946 2.139 3.780L 44.670L
= 021448.0 +622622 (2000.0) MSX5C_G132.4082+01.1117 -33 -17 2 3 2 -5 V(%):-:-:1:2:4:-
Takamizawa's comment:
The star may be a semiregular variable with a range of 12.5-13.1p.
[See, however, the earlier note. The star seems to be an early type
variable star in a dusty environment -- T. Kato]
Photographic magnitude estimates by VSOLJ members
object YYYYMMDD(UT) mag code
TmzV876 19950127.432 125p Tmz.VSOLJ
TmzV876 19960922.656 131p Tmz.VSOLJ
TmzV876 19971218.478 128p Tmz.VSOLJ
TmzV876 19980116.420 127p Tmz.VSOLJ
TmzV876 19991128.440 127p Tmz.VSOLJ
TmzV876 20000902.678 130p Tmz.VSOLJ
TmzV876 20011023.605 131p 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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