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[vsnet-alert 5945] RE:HadV89 : new eruptive

Re: [vsnet-alert 5944] HadV89 : new eruptive variable or a possible nova?
 
>   Katsumi Haseda (Aichi, Japan) reports the discovery of a new variable
>star.  The star star now.  No IRAS counterpart is found.  No apparent
>red star nor bright star is found on DSS.  The star may be some sort
>of an eruptive variable, or even a nova.  Follow-up observations, including
>astrometry, multicolor photometry and spectroscopy are strongly encouraged.
>
>   The reported is also sent to the CBAT.
>
>HadV89 = 181526.7 -185708 (J2000.0)  semi-acurate astrometry by Haseda.


I report the following prediscovery observations on my some of patrol films.
The star may be a Mira-type variable with a range of 11.1p-<14.0p.

object YYYYMMDD(JST) mag code
HadV89 199806032543 <140p Tmz
HadV89 199806202448 122p Tmz
HadV89 199806292354 118p Tmz
HadV89 199807032355 120p Tmz
HadV89 199807172337 118p Tmz
HadV89 199808202101 126p Tmz
HadV89 199809082023 133p Tmz
HadV89 199809102012 135p Tmz
HadV89 200005282624 136p Tmz
HadV89 200006012513 136p Tmz
HadV89 200006042411 134p Tmz
HadV89 200007032405 130p Tmz
HadV89 200007082234 129p Tmz
HadV89 200007162215 134p Tmz
HadV89 200007262144 138p Tmz
HadV89 200104222617 133p Tmz
HadV89 200104262609 133p Tmz
HadV89 200105122408 118p Tmz
HadV89 200105162506 115p Tmz
HadV89 200105202613 114p Tmz
HadV89 200105252525 111p Tmz


Kesao Takamizawa <k-takamizawa@nifty.ne.jp>
SASS (Saku All Sky Survey)
Saku-mach, Nagano, 384-0502 Japan

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