[vsnet-ecl 1439] [vsnet-alert 8471] AS 325 = NSV 24607 = deep minimum

[K.Nagai]

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> From: "Sebastian Otero" <varsao at fullzero.com.ar>
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> Date: Sun, 26 Jun 2005 01:25:31 -0300
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> Cc: vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp, Steve Howell
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Claus <fclaus at fullzero.com.ar>
> Subject: [vsnet-alert 8471] AS 325 = NSV 24607 = deep minimum
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> Dear all,
> 
> The enigmatic eclipsing (possibly symbiotic) system AS 325 (NSV 24607, in 
> Sagittarius) is fading dramatically right now, heading for its minima around 
> July 18th (see IBVS 5608,
> http://www.konkoly.hu/cgi-bin/IBVS?5608)
> 
> This cycle, a fading event started by the end of April, more than a month 
> before the predicted eclipse ingress. The star slowly faded and now the 
> fading has become more pronounced..
> See the ASAS-3 lightcurve:
> http://www.astrouw.edu.pl/cgi-asas/asas_lc/185004-2624.3
> 
> Several phenomena may be acting together to produce this complex lightcurve.
> The current magnitude is V= 11.4, fainter than ever (previous faintest 
> minimum was V= 11.3)!! and more than 20 days before mideclipse!!!
> Something is going on there and it's worth watching.
> 
> Dr. Steve B. Howell from WIYN Observatory is taking spectra of AS 325. 
> Multicolor photometry would be very interesting to follow these changes, 
> specially now that the fading is going further than expected from the 
> "normal" eclipse only.
> 
> Best wishes,
> Sebastian.
> 
> 
> 
> 
> 
>